I have the power of ESP. I can see the future of tennis strings.

Discussion in 'Strings' started by travlerajm, Jun 30, 2013.

  1. travlerajm

    travlerajm Hall of Fame

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    Today, I strung up my leaded extended O3 Red with 15L Prince Tournament Nylon mains and Monogut ZX Red 16 crosses. I manually pre-stretched both (added about 1.5% to nylon relaxed length, and about 7% to ZX relaxed length).

    I strung at 75/50.

    Initial observations.
    1. Hoop is only squashed 1/8". O3 frames are better reinforced in the string plane - this is less squashing than a conventional frame for this differential.

    2. The mains move and snapback freely, but the crosses are pretty much locked in place.

    I look forward to trying this out on court.
     
    Last edited: Jul 13, 2013
    #51
  2. travlerajm

    travlerajm Hall of Fame

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    The result was controllable, but with rocket-laucher power. Spin-on-demand was available, but the spin was not nearly as impressive as with the kevlar/zx or with the kevlar/poly. It still had the versatility in that I could hit both flat shots and spin shots with low controllable launch angle.

    But the defining characteristic of the stringbed was extreme power moreso than extreme spin. I hit a few serves with it, not enough to get my arm fully loosened up, but enough to see that the stringbed could lend itself to some explosivenesss on serves.

    Then this Russian dude showed up at the courts and asked me if I wanted to hit. I said ok. I warmed up a few balls with the O3 Red. The Russian guy ended up having a huge 5.0+ forehand, and I decided that I wasn't comfortable hitting against his penerating ball with the high power level of the racquet - it might have been better if I had an adjustment period. Also, I hadn't re-tuned the MgR/I of the frame yet either. So I switched back to my Blade, which gave me a stark contrast. Compared to the nylon/ZX 75/50 on my Red, the kevlar/zx 63/49 on my Blade (firmer given denser pattern and kevlar) gave me lower power, more spin, and more confidence.

    I ended up playing 3 sets. Won 6-1, 6-2, 7-6. I had a dead arm on serve, but my Andy Murray style spins-and-slices counterpunching and strategic ball-movement pushing gave him fits until he started choosing his spots to attack better in the third set. Barely pulled that one out.
     
    Last edited: Jul 14, 2013
    #52
  3. Bhairava

    Bhairava Rookie

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    Omg :-D and you got this performance with a string setup with how many played hours...?
     
    #53
  4. travlerajm

    travlerajm Hall of Fame

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    Actually, this weekend I'm finally seeing a limitation of the ESP setup.

    On Thursday, after 8-10 hours of play, the spin potential reached a maximum, with freakish kicks on my twist serve as I reported earlier. Then last night, the spin wasn't as extreme.

    And today, the spin level was further reduced to about the same level as if I had strung it without any differential. Control was still excellent. Power level seemed a little deader.

    Upon inspection, the frame was no longer squashed 1/16". It is now almost back to its relaxed length.

    My conclusion is that the ESP effects only last as long as the string can hold the tension differential. As soon as the kevlar started to notch significantly, the kevlar elongated, and the tension differential disappeared.

    I may consider getting some 16g kevlar next to see whether it can prolong the period of ESP effects, since it is without question the best all-around-performing stringbed I've ever used for that first 10-12 hrs. Maybe with 16g kevlar, I can extend to 20+ hrs or more?
     
    Last edited: Jul 14, 2013
    #54
  5. treo

    treo Rookie

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    I strung up an old Prince Thunderlite OS with kevlar at 67 and polyon at 50, both pre-stretched. An ounce was added to the handle to make it 11.5 oz like my regular stick.

    I didn't notice any more spin than usual. It felt dead, stiff, low powered with lots of control. After 3 hours the mains notched almost half way through in some areas so I don't see this setup lasting more than 6-8 hours. Overall, I didn't like it and am done with kevlar.
     
    #55
  6. travlerajm

    travlerajm Hall of Fame

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    Sorry you didn't like it.

    In the OP, I noted that the remarkable thing about the ESP setup was not that it was spinnier than a normal high-spin-potential setup, but that the stringbed had great control over a large "dynamic range" of shots. That is, the flat shots, volleys, and slices could still be hit with great directional control, while the high-spin shots were still spinny but with lower launch angle (for better directional control and more shank-proof spin window).

    This is very different behavior than other high-spin-potential setups, where good spin potential usually comes with the compromise of high launch angle and the associated loss of directional precision.

    Did you attempt see how the racquet responds to intentionally heavy spin shots?
     
    #56
  7. FlyingAce

    FlyingAce New User

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    Hi travlerajm,

    I know that you don't use gut, but I am very interested to hear what do you think about applying ESP principle to Gut/ZX? If I prestretch Gut and ZX and make it 60/50 in a blxPS90, leaded up to SW 355, how do you think it would turn out? And what about idea of mains beeing significantly stiffer than crosses?


    Thank you!
    Sorry for my english, I'm not a native speaker
     
    #57
  8. souledge

    souledge Semi-Pro

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    Gut is not stiff.
     
    #58
  9. FlyingAce

    FlyingAce New User

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    Captain obvious? :)
     
    #59
  10. ultradr

    ultradr Hall of Fame

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    How about gut main at 63 lbs / kevlar cross at 49 lbs?
     
    #60
  11. souledge

    souledge Semi-Pro

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    Where would you get your tension differential from the mains then? Really stiff crosses and really soft mains?
     
    #61
  12. FlyingAce

    FlyingAce New User

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    From what I understood there are two main contributers to ESP,
    1) significant stiffness diference between mains and crosses (mains stiffer than crosses)
    2) significant tension difference between mains and crosses (up to 14 lbs)

    It is obvious that gut is not stiff (100 stinffness), but ZX too can not be called stiff string (150 stiffness), compared to poly (250), anyway point 1 doesn't apply to gut/ZX.
    But what about second point, if I string prestrached gut/ZX 60/50, what would it yield?

    Standart gut/poly set, gets spin from snapback effect, but problem arises when you are trying to flatten out your shots, because of a high and a bit uncontrollabe launch agle of a standart gut/poly set.
    In theory (travelerajm theory :) ) High tension differantial increases stiffnes ratio and snapback effect, where higher stiffness ratio should decrease launch angle. And if we use ZX instead of poly, it should give us more tension maintenance and power ( wich is sometimes needed in blxPS90), while giving all the benefits of using poly as a cross (low friction between strings, due to slick surface, wich enhanses snap back effect)

    That was my question.

    I have already orderer ZX and kevlar and waiting to try ESP setup, both with kevlar/ZX and gut/ZX.

    Again sorry for my english, I am from Kazakhstan.
     
    #62
  13. Bhairava

    Bhairava Rookie

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    High stiffness ratio do NOT decrease launch angle in flat shot. It will decreate in spin shot.
    I asked a friend of mine, an italian professional stringer, to experiment with this setup, and here are the conclusion(I translate them):

    "The first part of the test is gone. Kevlar/ZX at 28kg/22kg manually prestreched, put on a nSixTwo racquet.
    I've gone mad for more than 1 hour trying to understand "what" I had in my hands and "how" make it works. After that hour I gave it to a friend that has a game more viable than mine for that test and for that racquet.
    In the first hour/hour and half even him and I haven't understood anything about that "new animal": I'm not a spinner player, but If I tried to hit a flat shot all balls were flying out, if I gave rotation the ball spinned, but it landed too short(even if the angle of launch was correct for me) and it bounced "strange", somewhat low bounce, something that has surprised me and my friend but that has not put him in serious difficulties. At serves, the first serve is usually my strengh point but the ball went long (in flat shot) and it loses too much pace if in kick; at the same time the second serve was full of spin,but without "weight".
    The sound has changed when was my friend's turn to use the racquet, because of having a more properly playing style. His service was running much more(but when and if I arrived to the ball it wasn't so difficult). Baseline spin was very hurting, but if I succeded in controlling my ball and shortening, then he shooted balls to the sky or he put too much rotations. Even at net there wasn't much control.
    Aftert testing the setup for all the week, I have learned how to exploit it better from baseline, but anytime the ball came to me shortened the usual control problems arised...
    Synthesis. The setup works only if you play back of the bottom line - where this setup is precise, full of rotation and even quite powerful- but it's efficacy come down exponentially when approaching to the net. The frame was shortened by 1"(too much stress on the fibers I think) but it relaxes when kevlar start notching, with all parameters changing much more than with a traditional setup. Last but not least, 30 hours of playing are an utopia for me- 20 hours is the limit. I will not play anymore with that setup...and I don't think my client/friend is thinking different, because when his opponents learned how to counteract his game it was an anthology of errors.
    "

    My personal comments. I think manual prestrech is not enough, that's why my friend got his racquet parameters changing over time. And I think that 28/22kg (61.7/48.50lbs) is too much differential tension. I suppose 27/23kg(59.5/50.7lbs) will be a smoother setup, allowing little less spin from baseline but better control on flat shots, on net and allowing even less squashing on frame.
     
    #63
  14. travlerajm

    travlerajm Hall of Fame

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    Two points:

    1. If flat shots all flew long, and spin shots all spun short, it sounds like you were not used to such a wide dynamic range? It seems like something in between would all land in the court?

    2. If your frame squashed 1", then the pre-stretch was not done properly. An 18-ft segment of ZX will have a relaxed length of nearly 19.5ft after a manual pre-stretch (over an inch of rapid creep per cross string!!!). An 18-ft segment of kevlar will only be about 18.2ft after a manula prestretch. If you don't pre-stretch, then your racquet will squash by a full inch like you reported when you remove it from the stringer. Your actual effective tension differential was probably closer to 50 lbs initially, then decreasing rapidly toward zero as you played, because the kevlar was probably hardly pre-stretched also. I'm not surprised the racquet was hard to adjust to if it's swingweight was increasing rapidly as you tested.
     
    Last edited: Jul 16, 2013
    #64
  15. brokenRPM

    brokenRPM Rookie

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    sounds like a lot of sci fi stuff... almost almost bought the kevlar and mono...did Ashaway pay you to write this stuff?
     
    #65
  16. Bhairava

    Bhairava Rookie

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    Ahah travlerjam,the ashaway sponsor :p
    beside jokes, I Wanna say that I still haven't tried this setup.only my stringer friend and a friend of him!BUT I suppose you are right: the manual prestrech was not enough,so the gap between mains and crosses was so high that flat shots and spin shots were so different in pace.I suppose that a better prestrech could avoid those problems,avoiding this extreme squashing too.
     
    #66
  17. travlerajm

    travlerajm Hall of Fame

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    To recap on frame distortion, a 14-lb differential in reference tension gave me about 1/8" squash. A 20-lb tension differential gave 3/16" squash. A 35-lb differential gave a 1/4" squash. These were with blx blade 98, gamma t5, and diablo mid, respectively. In all 3 cases, the amount of squash decreased with each hitting session.

    The o3 red with 25-lb differential gave much reduced squashing, ( only 1/8" ), as o3 racquets are better reinforced in the string plane than regular drilled construction frames.
     
    #67
  18. travlerajm

    travlerajm Hall of Fame

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    Just strung up my hoop-siliconed 26.75" Diablo mid with ESP setup.
    Kevlar 17/ZX Red 16 @ 60/46, both thoroughly pre-stretched. Has that sublime ESP feel bouncing the ball on the stringbed - firm and crisp but springy and bitey. Feels even nicer than the Blade, maybe due to the lower stiffness of the frame. Mains snap back with full force. Frame squashed very little, less than the Blade, only about 1/16" tops. The diablo seems to have beefier, more solid, less hollow construction than the Blade.

    Looking forward to trying on court
     
    #68
  19. chapmag

    chapmag New User

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    Lovin' the launch angle

    Played a singles match tonight. Started with my reverse ESP that was an attempt to lessen the effect of the stiff Kevlar (prestretched 5% 18g kevlar 47#/16g MGZX red 54#). Couldn't figure out why my serves were all slightly long and my groundstrokes were sailing way up into the air and going long. Definitely noticed the lack of string-enhanced spin.

    Then, duh, noticed I was not using my signature ESP racquet. Switched to it for second and third sets and rolled. Everything was dropping in and I had much more confidence to hit out.

    I hit at best with medium topspin but this tension difference makes a world of difference to my game. I'm at about 15 hours on the ESP string job and it's still going. I love that I don't have to change my swing to adjust for an increased launch angle and I can just hit away.

    Cut out my non-ESP strings to prevent this from happening again :)
     
    #69
  20. mykoh

    mykoh Rookie

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    hey guys, just about to go ESP on my TFight 315, but i was wondering what tensions should i go for? I realise the key is a goooood pre-stretch for both strings, as well as a substantial (9-12lb) tension differential. is there anything else i should consider? my usual setup is full Mosquito Bite at 52/50.
     
    #70
  21. Bhairava

    Bhairava Rookie

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    What I can suggest for you(until I'll try it myself) is: keep the average tension at 51lbs(this gives you the reference stringbed stiffness), going 57lbs kevlar mains and 45lbs ZX crosses, both fully prestreched.it will be a bit less extreme than HUGE differential tensions tried by travlerjam, but I think the results are more predictables. Then if you like it you can push even further to 16lbs differential tension.
     
    #71
  22. newyorkstadium

    newyorkstadium Semi-Pro

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    51 would not be the average of a 57/45 stringbed, as the mains contribute more to the overall stiffness of the stringbed.
     
    #72
  23. Bhairava

    Bhairava Rookie

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    It seems not. Travlerjam has done 63 kevlar(!!)mains and 49 ZX crosses.This is 56lbs of average on a 98 square inc racquet!!If mains would contribute more than crosses, 56lbs average with kevlar main should give super super stiff racquet stringbed. But it do not happen. For some reason the stringbed result in a nice, right stiffness.
     
    #73
  24. newyorkstadium

    newyorkstadium Semi-Pro

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    It is said by some posters on here that kevlar is more comfortable then poly. Also, travlerajm uses a very heavy racket, with a high SW. He has said in the past that string comfort is a non-issue for him.

    Anyway, my point that 51 would not be the average of a 57/45 stringbed was a bit petty and irrelevant, so I won't take it any further.
     
    Last edited: Jul 18, 2013
    #74
  25. travlerajm

    travlerajm Hall of Fame

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    Pre-stretch both strings is important for getting decent longevity/stability out of the setup.
    On the pre-stretch, I recommend tying one end to a post of fixed object, tying the other end to a tool that you can grip (such as a wrench), and then leaning your body weight into it. Importantly, I recommend measuring the relaxed length of the string before and after. You can do this most accurately by marking off a gauge length, and then seeing the change in length of the marked length. Or you can also mark the position of your handle tool before you start, so that you can measure the change in total length. Also important is patience - you should pull with your body weight in good lean for at least several minutes, because the viscous creep does not happen instantly. Keep pre-stretching until you stop noticing any growth in relaxed length. Also, a safety tip: if you are leaning with all your body weight, make sure you either have one leg ready to brace your weight, or nothing dangerously in your way in the event that the string breaks or your knot slips out while you are leaning!

    On the tension, I would recommend using an average tension that is similar to what you are used to. If you usually use Mosquito bite at 52/50, I would recommend pre-stretching Mosqito bite mains & crosses as above (which increases the effective tension ~5 lbs), and trying about 55/39. This might result in slightly lower swingweight, which you can compensate for by adding mass to the tip if the racquet feels too quick.
     
    Last edited: Jul 18, 2013
    #75
  26. travlerajm

    travlerajm Hall of Fame

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    Yes. The bolded statement is why I love the ESP. With a conventional stringbed, taking a big uppercut can penalize you with risk of shanking and decreased control of the launch angle. But with ESP, the big cuts seem to be rewarded more reliably, so I have more confidence to rip away.
     
    #76
  27. brokenRPM

    brokenRPM Rookie

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    ordered my ashaways today. will give it a try. this stuff sounds too good to be true though
     
    #77
  28. mykoh

    mykoh Rookie

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    great stuff trav, thanks.

    any disadvantages pre-stretching the string by looping it around a pole or round pillar and pulling on the two ends, as opposed to tying off one end and pulling the other?
     
    #78
  29. travlerajm

    travlerajm Hall of Fame

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    you can't pre-stretch very effectively that way because your weight gets supported by two strings. With only 1/2 the tension , you will not even have as much tension on the string as when you string it. You would have to lean for a week continuously to get the same amount of pre stretch as 5 minutes pulling all the weight on one string.
     
    #79
  30. newyorkstadium

    newyorkstadium Semi-Pro

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    If you tie it round a post, the 4-6 inches that are tied round the post will be immobilized. Thus 4-6 inches of the string won't be pre-stretched. Which would you leave you with a stringbed that isn't fully pre-stretched.
     
    #80
  31. tlm

    tlm Legend

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    Are you serious the ends are cut off anyway.
     
    #81
  32. newyorkstadium

    newyorkstadium Semi-Pro

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    Yes, I was serious. I should have added, I know nothing about stringing. I get my rackets strung by a local stringer.
     
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  33. brokenRPM

    brokenRPM Rookie

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    I looped the kevlar around a pole in the costco parking lot and pulled it for 3 min. then I did the same to the hex poly 18g for 1 min.

    strung them up at 65 and 55 Hex Poly crosses.

    will try it out this afternoon.
     
    #83
  34. brokenRPM

    brokenRPM Rookie

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    it's great. travlerajm is the man. this stuff works.
     
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  35. brokenRPM

    brokenRPM Rookie

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    it's a little stiff with the poly crosses. I will try gut next time.
     
    #85
  36. jaydog23

    jaydog23 Rookie

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    So we're doing away with the whole constant stringbed tension philosophy, then...? I'm now wondering, in my Prestige Classic if I go Tour Bite 17 / N.Vy 16 51/49, will I get warping or - even worse - breakage?
     
    #86
  37. purple-n-gold

    purple-n-gold Professional

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    I'm out of kevlar so trying my own version of ESP fwiw..YY HS poly mains with Dynamite zyex multi x's, both prestretched at 57m/45c lbs respectively.

    I've used dynamite once as a cross and did not really care for it, moved alot and felt mushy. Hopefully the prestretch will help.
     
    #87
  38. ricardo

    ricardo Professional

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    No you won't....

    No you won't...Don't worry about it.


    High tension differential implies at least 10lbs difference between the mains and the crosses. Personally, I have done 25lbs difference without any problem.

    In your case, it is only 2lbs difference so don't worry about it. TW recommends tension differential up to 4lbs if you want different tensions.
     
    #88
  39. Bhairava

    Bhairava Rookie

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    BrokenRPM,maybe 55lbs for poly cross was too much. You could try 60/50 to add some softness to the stringbed :)
    the problem with gut is: it will be cut very easily by Kevlar and it will be too powerful at low tensions.well,maybe 55lbs gut will be good,but I prefer trying kevlar/poly at lower tensions.
    I seems I cannot find Kevlar reel in Europe. I'll try something like 60lbs tour bite 1.30 and 48lbs black widow :)
     
    #89
  40. brokenRPM

    brokenRPM Rookie

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    thanks, i actually like the feel of the setup. Kevlar was something I have never tried because it's so stiff on paper.
     
    #90
  41. newyorkstadium

    newyorkstadium Semi-Pro

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    Why not try ZX instead of gut, brokenRPM. It is more slippery then gut. I don't know if it is less resistant to breakage then gut, though.
     
    #91
  42. newyorkstadium

    newyorkstadium Semi-Pro

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    So more then 4-6 inches are cut off both ends of the string? What about if you cut an 18ft piece of string from a reel, like travlerajm did? Is there then a risk of some of the string-bed not being pre-stretched with the post method?

    Again I must add, I know nothing about stringing. I get my rackets strung by a local stringer.
     
    #92
  43. tlm

    tlm Legend

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    Most of the time there is at least a foot that is wasted at both ends.
     
    #93
  44. travlerajm

    travlerajm Hall of Fame

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    Pre-Stretching Tips

    A few pre-stretching tips:

    1. The purpose of pre-stretching is to get more consistent performance over time, with much-reduced tension loss. It will greatly prolong the period of amazing performance of an ESP string setup.

    2. The more thorough your pre-stretch technique, the better your stringbed will hold tension.

    3. A thorough pre-stretch requires both time and tension.

    4. The degree of pre-stretch depends exponentially on the tension of the stretch, but logarithmically on the time. This means that high tension is much more important than long time (an 80-lb stretch is many times more effective than 40-lbs, but 4 minutes is only slightly more effective than 2 minutes, which is much more effective than 10 seconds). For an effective pre-stretch, you need the prestretching tension to be greater than the tension that the string will experience in the racquet.

    5. The static force you can apply by leaning with most of your body weight is roughly 80 lbs, which is sufficient for an effective pre-stretch.

    6. For an effective pre-stretch, you should NOT wrap the ends around a pole and then pull on both ends at once! This divides the force from your body weight lean in half, so that the string only has about 40 lbs of tension applied. Due to point 4 above, it would take more than a week of continuously leaning on both ends to achieve the same degree of pre-stretch as you can by pulling on just one end for a few minutes.

    7. When you pre-stretch, it is useful to tie a loop of heavy twine or rope around a solid object (like a pole or end of countertop) and then tie one end of the string around the twine. Then you can tie the other end of the string around a tool such as a wrench, to give you a secure and comfortable handle for pulling. This method only wastes a few inches at each end.

    8. To make sure you pre-stretch the same amount every time, it is useful to measure the relaxed length before and after. This can be done by marking a gauge length on the string. This also helps you determine when you are reaching the point of diminishing returns. An even easier way is to mark the distance your handle has moved from the starting point when the string is relaxed but pulled straight.

    9. A pre-stretched string will feel tighter, becasue it does not immediately lose as much tension as an un-prestretched stringbed. You will need to lower the reference tension to compensate for this effect in order to have the same initial stringbed stiffness.
     
    Last edited: Jul 21, 2013
    #94
  45. Bhairava

    Bhairava Rookie

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    Well,two questions for you travlerjam:
    1. Pulling both ends of the string gives half of the tension,but on half of the string!!when you pull only one end you are pulling over the entire length. I think the key is the tension per length, that is equal in both prestrech metods.
    2. Giving a so hard prestrech on the cross string isn't giving away all of his softness/power? Especially on poly, I suppose that a strong prestrech leave it "dead",without elasticity. I'm asking myself this question too,because doing tour bite/black widow at 60/48 is scaring me quite a bit: if BW lose any softness the results will be very bad...
     
    #95
  46. travlerajm

    travlerajm Hall of Fame

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    No. I am sorry you are confused, but the laws of physics do not work that way.
    See pre-stretch tip 9 added above. Pre-stretching does not remove elasticity. Lab tests by the TW Professor showed that a pre-stretched string actually has more energy return (more elasticity) than un-prestretched string. But you may need to reduce the tension to compensate for the reduced tension loss if you are concerned about the increased stiffness.
     
    Last edited: Jul 21, 2013
    #96
  47. Shroud

    Shroud Hall of Fame

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    Hey Traveler.

    I missed this thread because of the title. Thought it was some prediction thread.

    Anyhow I have been doing elt with kevlar mains and syngut.

    Recently I have been stringing at 32/32 using the prestretch feature on the wise and prestretching by the max of 25%

    I have settled on 18g ashaway kevlar for the mains and am now hunting for crosses, so I bought a bunch of 18g strings.

    couple of questions for you:

    1. If I am going to try esp, can I go down to 20lbs with the crosses, or should I go uo with the mains to say 40?? TE is healing and I have played through it using elt, added weight, etc. So I am a bit hesitant to go higher with the kevlar.

    2. Out of the following strings which would you recommend for the crosses most are 18g strings:
    Ashaway Dynamite 18 soft, Volkl Powerfiber II, OG sheep Micro, Weiss Cannon Mosquito bite, Isospeed energetic 1.2, Prince Syngut 18, Vs gut 16, Leona 66, Gamma Moto, Gamma, IO 16, Gamma Polyz 16, Wilson Shock shield, Prince original syngut 16.

    3. Was going to do the Lendl method today with kevlar mains and crosses with probably the shock shield for the other mains or crosses. How would ESP compare to the Lendl pattern.

    4. I am a spin player and find it nearly impossible to NOT hit with spin. But I am a serve/ volleyer and often come in on return games too. If I am increasing spin wont that mess with my approach slices??

    5. Arent you worried about the long term effects on your frame?? If I read right, it is stretching over time.

    TIA!
     
    #97
  48. travlerajm

    travlerajm Hall of Fame

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    I don't personally have much experience in tensions that low, because I can't stand the lack of control from a launch angle that depends so heavily on incoming rpm. But if you are happy with the stiffness of the stringbed at 32/32, my suggestion would be to try 40/24. This should keep the overall softness of the bed similar, but the snapback effect that is critical fro spin should be enhanced.
    Syn gut strings will work fine for the first couple of hours. But syn gut tends to roughen up after that, and the spin will drop off a lot when that happens. You might get longer lasting good spin performance with poly crosses, but stay cognizant that the overall stringbed stiffness will decrease more over time with poly crosses, as the poly will lose tension faster than syn gut.
    The Lendl method is a completely different approach that attempts to get similar results. Softening the periphery of the stringbed lets the central area of the stringbed deflect more (for more spin and power) without the downside of lower tension (more denting). Lowering tension increasing denting (when the ball dents into the stringbed), which increases launch angle and reduces directional accuracy. You can get a more pronounced effect than the Lendl method simply by omitting the outer mains.

    The ESP method gives a much more dramatic effect than the Lendl method. It increases the snapback effect that is important for spin generation without needing the reduce the overall stringbed softness.
    The beauty of the ESP stringbed is that directional control on flat shots and slices is unaffected. The extra spin is only noticeable when you purposely add English to the shot or take a big oblique cut at the ball.
    Not really worried about the racquet. The racquet can handle the small amount of distortion. It's the strings that tend to give way - an ESP stringbed eventually loses its special powers when the mains stretch out and the frame returns to its relaxed length. Thus, the key to maintaining the power of ESP in your stringbed is thoroughly pre-stretching the strings (especially the mains) enough that they will hold tension extremely well.
     
    Last edited: Jul 21, 2013
    #98
  49. Bhairava

    Bhairava Rookie

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    Sigh, as engineer I should be sure about that,but actually I am not :p
    I am still thinking that putting one piece of string to 80lbs of pulling force vs an half piece at 40lbs should be the same for the stress received to the string molecules. For example, if I put a little piece of string to 80lbs of puling force I could break it.but if I tension 18ft of string at 80lbs it will just sustain this force.
     
    #99
  50. Shroud

    Shroud Hall of Fame

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    Thanks for the reply.


    Couple of other questions.
    Out of the listed strings above it sounds like I need a cross that holds its tension best. Leona 66 and Ashaway Dynamite both claim that tension maintenance is good. Given that you are using zx and it is Zyex based like the Dynamite, it sounds like that is the best choice on my list. Wouldnt you agree?? Or is there a better choice in the list?

    Is the prestretching on the wise constant pull as good a method as prestretching by hand? If I am doing 40lbs it would prestretch to 50lbs with a constant pull. Is that enough or do I need to do it by hand?

    ALso I think I can stand elt because the kevlar is stiff enough that the launch angle isnt as big of a deal. Though I was able to hit fine with a full bed of syngut it needed more tension to be viable. DOnt get me wrong I did make some minor changes and just for kicks I tried the old frame with the 63/65 Kevlar/combo and the first few shots were in the ground IIRC.

    Finally I recall on the low tensions thread that some poster made a snide comment that when strings break you dont keep playing with them, you restring, and that a broken string bed was similiar to ELT. That is why they said it wasnt good. Isnt ESP the same as a cross breaking on a normal hybrid string job???
     

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