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  1. Irvin

    I’ve eliminated drawback stringing a racket 2 piece with floating clamps (almost)

    I don’t think you’re ever going to get rid of all the drawback but you can get rid of most of it. Instead of tying off the mains I held the outer mains with starting clamps. I had a leather pad between the SCs and the frame. The distance from the outer main to the tie off grommet was less than...
  2. Irvin

    DIY racket matching jig w/Video

    Similar to another post, I made a racket matching jig I use to check balance and SW of tennis racket. I wanted to keep the weight of the apparatus low and near the pivot so I could use SwingTool to check the inertia or SW of the racket and ignore any error introduced by the apparatus used to...
  3. Irvin

    DIY racket matching jig w/Video

    Similar to another post, I made a racket matching jig I use to check balance and SW of tennis racket. I wanted to keep the weight of the apparatus low and near the pivot so I could use SwingTool to check the inertia or SW of the racket and ignore any error introduced by the apparatus used to...
  4. Irvin

    My new BOX / ATW pattern with pictures

    I’ve been using a new ATW pattern for a long time and would like to share it. I do not suggest using an ATW pattern for all rackets, you will have to decide that for yourself, but this pattern works well for very many rackets. To begin, if I have an odd number of crosses, start with the Short...
  5. Irvin

    Mission Impossible Matched Rackets group challenge

    @TW Staff, and play testers. I have a challenge for the group if you choose to accept it. Match the weight and balance of 4 like rackets with only 2 of the rackets having the same SWs. The other 2 will have a lower and a higher SW than the matched pair with the same weight and balance. The play...
  6. Irvin

    Matching rackets weight and balance

    Some of you thought my previous method of matching rackets was a little over the top I guess. Well I going to show you how to match weight and balance (I hope) in easy to understand terms. I just got 2 rackets from a customer and the specs are: Racket #1 Wt 317.4 and balance of 32.0 Racket #1...
  7. Irvin

    I'm starting to match 2 Tecnifibre 315 Dynacore Rackets

    Just for the fun of it I'm starting to match up 2 rackets and raise the SW by about 10 points. I've taken the strings out and removed the grips, so I'm down to bare rackets. The specs I have now are: Racket #1 - Weight 305.0 g, Balance 31.3 cm, SW 284.6 Kgcm^2, and TW 13.0 Kgcm^2 Racket #2 -...
  8. Irvin

    Wilson Ultra XP 125 stringing instructions

    Anyone ever string on of these funky rackets? https://www.wilson.com/sites/default/files/UltraXP_125 (1).pdf I used one piece stringing but did not follow the instructions. To begin with I used enough string outside the frame for L1 to reach the tensioner which is about 1’ instead of 6”. Even...
  9. Irvin

    2 Buck Chuck

    What is the best low cost string one can chuck in a racket in your opinion?
  10. Irvin

    Badminton flailing tool

    @graycrait weren’t you looking for a flair / flare tool at one time? This is for badminton but should also work for tennis. https://www.aliexpress.com/item/Alpha-2019-New-Badminton-Grommets-Tools-Hot-Pressure-Pliers-Pure-Copper-Electric-Mouth-Tools-Alloy-for/32857744342.html
  11. Irvin

    Measuring SW (and / or TW)

    There is a balance board thread that was getting hijacked talking about contraptions for measuring the inertia of a tennis racket so I thought I would start another for the inventors out there and show one of my own. To begin with IMO I believe the device that holds the racket if it is pivoting...
  12. Irvin

    Goodbye 2018

    Happy New Year everyone, from my family to yours I wish you a happy, healthy, and prosperous new year.
  13. Irvin

    2018 Tecnifibre T-Fight XTC Rackets

    I picked up a few of the new T-Fight tennis rackets yesterday. I’ll post the spec first and take some pictures shortly. I strung all rackets with Black Code 4S 18 gauge and installed a Pro Contact overwraps. T-Fight 315 XTC Weight 336.2 g Balance 31.4 cm Swing weight 315.3 at 10 cm MgR/I 21.00...
  14. Irvin

    Found a use for two starting clamps

    Does this picture look strange? Look at the knots the mains tie off on the bottom crosses tie off and the cross ties off on a main tie off. Why do that? Try to figure it out before I explain below. This is a racket where the mains skip 7&9 and tie off at 6T which results in a double blocked...
  15. Irvin

    Thought for the day

    Why is it when you mount a racket on your stringing machine with the logo on the butt cap right side up the printing in the throat are is usually upside down in the throat or on the bottom of the racket?
  16. Irvin

    TFlash 315 2017

    Someone asked about the TFlash rackets not long ago but I forgot who. I've seen pictures of the 315 on Tecnifibre's Facebook's page and now it is also on their Website. But it does not show when they will be coming out. I assume it will not be too long now.
  17. Irvin

    Proportional Stringing

    I tried a proportional stringing pattern (Sergetti @ sergetti .com) and I liked it a lot. But using that process can be quite expensive with multiple rackets, tensions, and strings so I thought I test out some other alternatives. I'm going to use the spreadsheet diredesire has on his site...
  18. Irvin

    Repair bumper guard

    I seem to remember someone repair a worn out bumper guard by glueing or plastic welding a patch in the worn spot. Does anyone remember who that was or have the link to the thread?
  19. Irvin

    Who said you can't teach an old dog new tricks?

    I was replacing grommets on a Head YouTek OS and the grommets at 6H, 7T, and 9T were pretty mushroomed. I did not want to cut them off so I though I would break out the heat gun and soften them up. As they softened up they also closed back up a little and were easy to remove. I think if the...
  20. Irvin

    Do the YouTek OS grommets fit the Ti.Radical OS frame

    I called TW and they say no they are two different frame. Just wondering if anyone knows if the grommets are interchangeable. I know they are different colors. I'm doing a stare and compare on the two frame now any they look identical. EDIT: I also see the bumper for the YouTek has one more...
  21. Irvin

    How do you pronounce Nutcracker?

    Now I understand, I was wondering why everyone was having problems with their pronunciation.
  22. Irvin

    Delray Beach and Tecnifibre stringing team

    http://baseline.tennis.com/article/64392/delray-beach-stringer-reveals-crazy-low-tension
  23. Irvin

    Search function

    It looks like the search function is not working @TW Staff
  24. Irvin

    Hairpin dimensions for TK82 pallet

    I'm trying to replace a pallet on a T-Flash racket which has a 0.72" x 1.0" hairpin (18.2 mm x 25.4 mm.) I was wondering if anyone knew the outer dimensions of any other hairpins and or the inside dimensions of any pallets. Thanks in advance.
  25. Irvin

    In a perfect world ...

    The original poster would be able to approve / hide comments made by trolls. Then no one would read the comments from posters who have nothing to say. And when the original poster has found out what he wants and no longer approves posts no one is ever bothered again with that thread. No more on...
  26. Irvin

    Calculating Twist weight

    @TW Professor @TW Staff I was looking in the TWU TWISTWEIGHTS Table (http://twu.tennis-warehouse.com/cgi-bin/twistweight.cgi) and I see different TW values for for the RF97 rackets than the results I myself found for these rackets (both the old and new models were 13.0.) I was wondering if you...
  27. Irvin

    SwingWeight Axis

    @TW Professor @TW Staff When using the TWU SW Calculator to calculate the SW, is the SwingWeight given that about a 10 cm axis or some other axis? Thanks in advance, Irvin
  28. Irvin

    Gobble, gobble, gobble...

    Gobble 'til you wobble! Happy Thanksgiving.
  29. Irvin

    SW Calculater

    @TW Professor I've been using an apparatus that allows me to swing the racket from the handle (10 cm) instead of using a string on the head of the racket. Just playing around with the SW Calculator I've found that any time I put in a hang point lower than the balance point I end up with a...
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