Any more thoughts on the set up?FNG here.
I just clipped out the old Tecnifibre NRG from my Austrian i.Prestige MP and had it strung with Ashaway Crossfire ZX at 45/50 lbs.
That choice was based on the manufacturers recommendations for each and considering I prefer a medium-firm string bed.
I'm looking for a really low power string that lets me swing away.
In my old age (= wisdom), as a former 5.0 player, I now realize the springy multis (and, likewise, nat gut) that I loved back in the day because they made a bigger (apparent) sweet spot in a 70 in² frame (yes, real wood) just serve now to fly the ball out of the court unless my strike elevation is abso-effing-lutely spot on. Like *that* ever happens anymore .
I just got it back from the stringer a couple of days ago and have only hit serves and backboard with it, but, so far, I see nothing to hate.
When I do it again, I might drop it a kg or two, but I don't want to give up that firm "swing away" power level.
Also, I've read that Zyex™ is resistant to notching which—beyond being the source of "feel" in the setup—is partly what makes it a good cross in a hybrid with aramid (this may have been mentioned before, but I haven't crawled the whole thread yet!).
For spin, Kevlar sliding over poly easier than Poly sliding over Kevlar. Just an hypothesis!does kevlar have no snap back for you guys. I'm at 55lb kevlar mains and after the first 4 hours my mains are all over the place and not straight at all. If I hit a forehand the mains bend one way and stay like that. I'm having to adjust strings every point
Anyone tried poly mains and kevlar in the cross?
I try to prestretch it on a door knob but I also pull once, let go and pull again on the mains with 30 sec pull. Ashaway 16g or 17g main. But I'm not sure my pre stretch is good because when I cut out the cross to try a different cross. The mains are super super loose, such is the nature of kevlar? Like super loose, feels like 25 lbs or less.For spin, Kevlar sliding over poly easier than Poly sliding over Kevlar. Just an hypothesis!
You did not specify your cross string. But my gut feeling is that 55lb Kevlar is too low. Are you using Ashaway Kevlar? I assume you are. Even with 60/45 Kelvar/ZX w/o pre-stretch my mains were relatively straight. I would increase main tension and lower cross tension.
Here's my feedback after a few months (25h of play to be precise). After both manual prestretch (body weight 5-10min) + machine prestrech by my stringer (10% kev, 20% ZX), I start at 64/48.5 (29kg/22kg). My stringer said that the frame had a little "crac" sound during machine prestrech but everything OK at the end (I have taken measures before and after : only 1-2 millimeters difference even after 25h).Finally, I will test this hybrid. Ashaway Kevlar 16 + Monogut ZX Pro 17 black, both manual and machine prestretch. With 5kg differential (11lbs). Usually, play with Origin or multi at 26/25kg (57/55lbs). How much for equivalent gameplay sensations (same power and comfort) on a Prince Warrior 100 EXO3 frame ? 26/21kg ? 25/20kg ?
I don't want to hurt my arm with a board or the opposite of having a rocket launcher...
I just broke the kevlar after 31h last WE. Good durability and playability for this setup on my frame with 16g/17g (except the last 2/3 hours when kevlar starts to fray).Next time, i will strung at 64/44 (29kg/20kg) to increase differential and a little more power. What do you think, it will increase power or just the comfort ?
That's why I askThe tension on the crosses appears to influence the string bed feel/behavior more than the mains with this setup.
What's hard to understand: Kev needs a greater differential and Nat Gut needs less.I just broke the kevlar after 31h last WE. Good durability and playability for this setup on my frame with 16g/17g (except the last 2/3 hours when kevlar starts to fray).
For more comfort the first hours and "a little" more power (but just a little) : going from 64/48.5 to 64/44 (29kg/20kg) ? Or a little less : 64/46 (29kg/21kg) ?
That's why I ask
PS : Since I broke, I'm playing with my other new setup : Klip Legend 15L/Max Power 16G at 55/51 (prestretch 20% on gut). The control is.... different ^^
Have you broken Hyper G 17 @48/46 lb?Could someone suggest a good tension for me? Just bought a brand new Clash 98 and reading the reviews about the racket, it is a string eater which is why I am interested in the Kev/Zyex combo. I currently use a DR98 with Hyper G 17 @48/46. 4.0 rating but TTW 2.0 if I'm lucky. Thanks in advance!
I still have 3 DR98 in the bag along with 3 other Yonex frames (Vcore 310, Vcore and Vcore +). Bought the Clash 98 out of curiosity and the discounted price. Looking through the packs of strings I realize I still have a pack of the Kev/Zyex combo and thought it would go great in the Clash 98 since a lot of ppl are saying that it eats strings. I am not stringer but the stringer I go to is one of the stringers at indian wells.@sleepyeg , why did you dump the DR98? I hit with a variety of Yonex rackets this past year, giving one away, trading another and demoing the latest greatest. I also demoed the 4 98-100" Clashes. I sort of liked them all but thought the Clashes were too soft for me but most of the Yonexes had too much power. I typicall play with 95" rackets 18x20 at 27.5. I have 30+ rackets strung with Ash Kev x Zyex. I have another 40 or so strung with something else from Nat Gut to poly to syn gut and multis.
Are you stringing your own rackets? If so it makes the Ash Kev x Zyex experience more practical. If you have to pay retail stringing prices it might be better to stay with what your are used to, maybe just go up to 16, 16L or 15L, 15 and drop a couple of pounds of tension.
Can you please describe this "clamp off 1 main inside the frame rather than snug to the frame" in more detail?If your stringer does not has experience stringing Zyex then suggest that they pull tension slower and clamp off 1 main inside the frame rather than snug to the frame.
Is that right, you are asking if there is enough difference between 10 or 20 lbs differential?Is it worth stringing it’s 10 or 20 pounds difference?
tennisbike makes good points.Is it worth stringing it’s 10 or 20 pounds difference?
The likelihood of breaking the Ash Kev while prestretching is small. You can go too far with the Zyex. On a 20' piece of ZX I try to get around 15" permanent elongation. When you string it you will end up with a surprising amount leftover to cut off.Will do. I'm always afraid the string snapping while manual prestretching.
Question: After 15" was pulled out of the ZX during pre-stretch, if you cut it to length, does ZX still end up getting stretched so much that you end up with a lot of leftover?The likelihood of breaking the Ash Kev while prestretching is small. You can go too far with the Zyex. On a 20' piece of ZX I try to get around 15" permanent elongation. When you string it you will end up with a surprising amount leftover to cut off.
In my experience, both zx and some poly’s, but not all, become extremely resistant to tension loss (i.e., almost negligible until breakage) when ‘fully’ prestretched.Question: After 15" was pulled out of the ZX during pre-stretch, if you cut it to length, does ZX still end up getting stretched so much that you end up with a lot of leftover?
If a string can easily be permanently elongated it means it has low yield strength. If its break at low force, it has low ultimate tensile strength. Though strength is defined as force/cross section area, such as in psi or KPa. Interestingly, after stretched out, exceeding yield strength, the material gets thinner and generally reaches higher strength, but the overall tensile force, lbs or kg (actually N) it can support actually decreases. What it means to me is that ZX has low strength. Pre-stretch increases its "strength", but repeated pounding probably still pushes it over its limit and it stretches out more. I do not think ZX ever stop loosening when played, like some poly.
I've tied it to a broomstick.. its a bit easier now.Have you tried wrapping the other end on your racket over grip. or you can tie it to the grip.
The Kevlar could lose tension because the knot could slowly slip in the racket. I was just now trying to pre-stretch the kevlar and the knot slipped off of the broomstick and I went flying. I don't think the string stretched at all.Yes we know that Kevlar strings stretch very little, but my experience tells me that.. because it stretches so little. Very little slack leads to a lot of tension lost, meaning the section of string outside the grommet and the little slack on the tie-off can give us tension loss, and that is for new, old, pre-stretched, no pre-stretched. Most experience people will tell you the "break-in" period, well, that is a bit of tension loss right there. Kevlar string is not immune to "break-in", A.K.A. tension loss.
Then what are you supposed to do? String it, play a few hours, and then string it again?I can tell you that ashaway kevlar resists linear stretching super well that only actual playing will cause it to lengthen out.
On my NEOS 1000 crank lockout I found that if I pull tension 3X on each main that works nearly as effectively as prestretching using my winch set up. As far as prestretching ZX I clamp one end in a wood vice with some folded bits of sandpaper to hold it in place, put the other end in a C clamp using bits of sandpaper to hold the string, walk across the hallway and pull 15" or so of permanent elongation.Then what are you supposed to do? String it, play a few hours, and then string it again?
I prefer Kevlar with a poly cross, it has better control than with a ZX cross.Now that I have my Kevlar reel here, I'm using prestretched Kevlar/poly and liking it. It is a poor-man's kevlar/zx to get me by while I'm away from home on the south american clay court circuit.
I would play it for about 8 hours and then cut out the crosses. The kev mains would be super loose, but when the new crosses went in they added back plenty of tension to the mains and snapback was excellent.I've tied it to a broomstick.. its a bit easier now.
Then what are you supposed to do? String it, play a few hours, and then string it again?
Ya it’s a stiffer feeling string bed but I like the added control and spin that I get from this set up.I’ve been enjoying kevlar/poly with pro xtreme crosses.
I string on the tight side without any differential. It is lower powered than kev/Zx, but more control due to the stiffer feel. And i think more spin without needing the differential. I like it a lot as someone who craves control and likes a fire-and-forget stringbed that plays great for a really long time. but it is probably not for everyone, as the lower power level might be a turnoff for some.
Two important things when using kevlar/poly:
1. prestretch both strings well. Otherwise the tension loss will be significant.
2.Choose a poly with good dent resistance. I stumbled into pro xtreme which has excellent dent resistance for a poly. Prince tournament poly is another with excellent dent resistance. If you use a more typical poly, the feel can be harsher and uncomfortable.
Amen my brother on ZX fragility.I like zyex but it's a fragile string imo. Strung it at 48lbs on the cross and and I hit a hard overhead in the sweetspot and it snapped right in the center, and it's happened to me twice in the sweetspot, and twice while stringing it over 50lbs hence why I did 48lbs this time.
For your average 4.0 or older 4.5 it is sort of like poly before it dies. It ain't perfect, but it works pretty good for a long time. For instance, if I could afford/had the time or desire to string Tour Bite every 4-6 hrs I would. But Ash Kev x ZX is good enough for this 65 yr old for a month or more.So what exactly are you getting in your opinion besides the durability?