Full Kevlar 16x10 Pattern

Discussion in 'Strings' started by travlerajm, May 1, 2011.

  1. travlerajm

    travlerajm Hall of Fame

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    I just strung up my Diablo mid with full Kevlar 16g in a 16x10 pattern. Mains 72 lbs, crosses 90 lbs.

    This is my 4th iteration of my experiments with a 16x10 pattern.
    To recap the first 3:

    1. Kevlar 16g mains at 35 lbs, Prince Tourna Poly 16g crosses at 60 lbs, on Diablo mid. Result: A disappointment. Spin was similar to full poly, but high rebound angle made it difficult to control shots, especially on volleys and blocked shots with low racquet speed. Stringbed a bit too soft.

    2. Kevlar mains at 72 lbs and Poly crosses at 90 lbs, on O3 Red. Result: Outstanding spin (30-40% more than with full poly). Control on Volleys still pretty good. Spin rpm is so high that I needed to either hit really hard or hit with high net clearance to get my groundstrokes to land deep, otherwise excesssive topspin pulls it down so fast. I really, really loved serves - amazing movement. Downside: Poly broke in 30 mins.

    3. Same setup as 2, but on Diablo mid. Result: Poly broke while stringing. The poly just isn't strong enough to take 90 lbs. So full Kevlar was the solution.

    Result of the Full Kevlar feels nice and crisp and grippy when bouncing the ball on the stringbed. Will test on court and report back.
     
    Last edited: May 1, 2011
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  2. travlerajm

    travlerajm Hall of Fame

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    Had a brief test. Still 10-20% more spin than a full poly normal pattern. But not as much as with the 16x10 Kevlar/Poly at this tension.

    Really nice on serves. Great bite! I enjoyed hooking forehands with sidespin. I actually hit the heaviest forehands I've ever hit. Dove down into the baseline and bounded into the fence.

    2hbs were a little underpowered, but that seems to be more due to the weighting, as I didn't do any final tuning like I usually do. The frame I used has 25g of silicone added in the 2 and 10 regions, and 1g at 12. And about 15g above the top of the grip. And it has been shortened 1/2".

    When I got home, noticed the stringjob squashed the head almost 1/4", even with the 18-lb higher tension in the crosses. SW is 351 in current squashed 16x10 config. The shorter length probably had something to do with the low-power 2hbs. I'm amazed that my kick serves were so heavy with the 26.25" length. Will try choking down next time out.

    Didn't have a chance to test volleys yet. But quite impressed with the string setup so far - it adds another dimension to my game with the ridiculous spin. I'll be testing this full Kevlar 16x10 pattern on some of my other frames as well, including my current regular frame, the O3 Red.

    One important note to add -- the 16x10 pattern is NOT equivalent to a 12x14. The 16x10 gives a lot more spin because the mains can travel more, while the crosses are locked in place. But this pattern requires super high tension to perform with super spin while maintaining control.
     
    Last edited: May 1, 2011
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  3. Dominik

    Dominik Rookie

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    Pictures please! I'm interested to see how this looks.
     
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  4. Racer41c

    Racer41c Semi-Pro

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    Nice experiment Traveler!

    I did one recently with my PS 16x20 and made it a 16x10. I changed the cross string from a syn gut at 54 to a poly at 60. The biggest thing I noticed is what you said: very soft feel. I couldn't say one way or another if the setup had any playability improvements or issues, it was a one time experiment and haven't had a chance to continue.
     
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  5. DE19702

    DE19702 Rookie

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    I know this is probably illegal, but what if you skipped every other cross in the middle of the racquet so that you have say, 7 crosses from the top, then skip every other cross for the next 3 strings (6 holes), then go back to every cross for the next 7 strings. This would mean the middle 6 cross holes would have only 3 strings. The rule says you can't have fewer strings in the middle, so they must have figured out when they did the rule that something is up with this string pattern. Does any one know of any attempts were made to manufacture a racquet with a less dense pattern in the middle?
     
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  6. corners

    corners Legend

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    It's a very old rule, so no manufacturers have built frames that violate it. The drilling on the K90 is actually borderline, IMO - by going with 4 crosses in the center rather than 5 on previos Tour 90s the center is ever so slightly more open than the zone around it.
     
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  7. travlerajm

    travlerajm Hall of Fame

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    Update.

    Took it out for a tuning session in the racquetball court. The strings were a little bit softer, but still firm enough that I had excellent control.

    I shifted some of the lead from the top of the grip a little further up the fork, and added another gram at 12. This moved the balance to about 32cm, where I usually like it. Fixed my issues with the 2hb as I'd hoped it would.

    Spin was still amazing, and I was getting excellent ball control on both forehand and 2hb. I had forgotten how much I like hitting forehands with the shortened mid. And volleys still felt nice and controllable, even with the exceptionally spin-friendly stringbed. I'm not sure why this seems to work so well? The physics seem to work differently than with a poly, as spin-friendly poly's (that seem to require low tensions to provide spin) are terrible for volleys at those low tensions. The super-high-tension 16x10 pattern seems to give me the best of both worlds (amazing spin on groundies without giving away much directional control on volleys). I believe it's because the mains on the tight full Kevlar pattern don't move much unless I take a big cut at the ball. But on the big cuts, there is enough lateral string stretch and snapback to create tremendous rpm compared to a normal stringbed.

    When I got home, I measured the length -- the strings had stretched out now, and the length had relaxed back to 26.5" -- no longer squashed!
     
    Last edited: May 10, 2011
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  8. 2ndServe

    2ndServe Professional

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    traveljam I'm wondering what your final conclusion was? Does did 90lbs kevlar do any damage to your racket or arm?
     
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