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my new main/cross ratio

Discussion in 'Badminton Stringing Techniques & Tools' started by kwun, Feb 17, 2010.

  1. kwun

    kwun Administrator

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    an interesting data point.

    for all these years, i have been following the general wisdom that the cross tension needs to be 10% higher than the main tension. it has been discussed and analyzed and disected many times over here in BC. and that just seems to be the "right" method to use.

    however, i have never liked what comes out of my machines. be it my old eagnas POS drop weight, of my ASE, or my WASE. none of the string job felt right. most of the time the stringbed feels dead at 24M/26.5C, or 23M/25C.

    so i started experimenting recently. and for the past 2 rackets, i strung 25M/25C and 24.5M/24.5C. and they came out much better with a much more lively stringbed.

    i don't know if i have reached the sweet spot yet, but for sure it is going to a direction that gives a more optimal feel than the previous attempts.

    will have to string more rackets and report it.

    meanwhile, if you think your job isn't good enough by following the 10% rule, or if you just want to experiment, maybe you can try same tension for M/C. report back what you get.
     
  2. visor

    visor Regular Member

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    Interesting...for 23/35, you meant 23/25 right?

    So when you compare playing 25/25 with 24/26.5 and 23/25, you find the 25/25 better?
     
  3. kwun

    kwun Administrator

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    yes. thanks for the correction. i have fixed the typo.

    and yes. i find 25/25 or 24.5/24.5 much more lively than 24/26.5 or 23/25.

    i have carefully chosen 25/25 and 24.5/24.5 as a comparison because in terms of overall average tension, it is very close to 24/26.5 or 23/25, so the difference cannot be attributed to overall tension difference, but instead more due to the M/C ratio.

    i have only tried this in 3 rackets. two of which i had used the 10% ratio but not like, and then changed to 25/25 and liked. and a 3rd one that i have not done the 10% diff but instead went straight to 25/25 and instantly liked.

    the number of datapoints is still too few. need more experiments but i think at least for my personal preference, it is going the right direction.

    thus i want to ask others who has a machine to experiment with this ratio and report back your finding comparing to other ratios.
     
  4. ryim_

    ryim_ Regular Member

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    I just want to clarify one thing, if I just walked into a store and said I wanted my rackets strung at 25lbs...this would mean 23/25 right?
     
    #4 ryim_, Feb 18, 2010
    Last edited: Feb 18, 2010
  5. cooler

    cooler Regular Member

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    nope, u cannot assume what u mean equal what they mean
     
  6. cooler

    cooler Regular Member

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  7. ryim_

    ryim_ Regular Member

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    the reason I'm asking is that I usually just ask for 26lbs but this time, the stringer asked so I said 24/26. the result was that the 24/26 felt very different and I did not like it at all.
     
  8. szekt

    szekt Regular Member

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    I have tried 24/26 vs 25/25 with my Arc 10 using BG66 Sharp and the feel with 25/25 is much better; my stringer actually recommended the same tension for both mains and cross despite the "official recommendation" of yonex....:)
     
  9. PapA_xlonG

    PapA_xlonG Regular Member

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    I walked into JB Honly and said I wanted my rackets strung at 26lbs, they strung me 26x28lbs. :)
     
  10. Blitzzards

    Blitzzards Regular Member

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    Some stringers actually consider the main strings tension as the one which is the requested. That is why the tournament stringers all string at main=cross tensions to remove discrepancies.
     
  11. Pete LSD

    Pete LSD Regular Member

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    Kwun, did you stretch the frame before tensioning? Did the strung frame (25 X 25) come out about the same length and width as an unstrung one?
     
  12. kwun

    kwun Administrator

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    stretch? i tightened the 12/6 o'clock support to decent tightness. no idea whether it gotten the same width/height or not.

    what difference does it make?
     
  13. kwun

    kwun Administrator

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    glad to see someone who has similar observation.
     
  14. ryim_

    ryim_ Regular Member

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    I've had a similar experience and thought that it was because of the stringer.
     
  15. Pete LSD

    Pete LSD Regular Member

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    The strung frame "might" come out shorter and wider an unstrung one, if the cross tension isn't sufficient and the shoulder supports give a little.

     
  16. Pete LSD

    Pete LSD Regular Member

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    Did you guys string the cross top down or bottom up?
     
  17. kwun

    kwun Administrator

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    the side support was definitely not supertight when i released them. given that, the racket head won't be significantly shorter than before.

    having said that, i will try to remember to measure the dimension pre- and post- stringing next time.
     
  18. kwun

    kwun Administrator

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    tried both. strange to say, seems to be similarly good regardless of TD vs. BU.

    now i am doing mainly BU.
     
  19. BeefUdon

    BeefUdon Regular Member

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    I guess from what I have read through this forum, the conclusion about the 10% in tension difference for the main and cross is to keep the origianl shape of the frame un-distorted. That is why Pete was asking the question. I am doing the Haribito way with the same tension all the way but as you know you start to tension the cross somewhere from the middle, by doing this I don't see much distortion.
     
  20. Pete LSD

    Pete LSD Regular Member

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    Awesome! I forgot. Did you use load spreaders at 12 and 6 o'clock?

     

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