Drop weight to crank tension difference

Discussion in 'Strings' started by Ljubicic for number1, Sep 14, 2008.

  1. Ljubicic for number1

    Ljubicic for number1 Hall of Fame

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    Hey guys, A question to the people who have moved from a drop weight to a crank machine, What tension adjustments did you feel you had to make to replicate stringbed tension when moving to the crank?

    I know drop weights are more or less a constant pull so they should be stringing tighter than my lock out.

    I recently bought some racquets that were strung on a drop weight at 58lbs with natural gut, when its time to restring them on my lock out I would like to replicate them. Normally I would just trial and error but obviously gut is a bit expensive for that so hoping to get it close first up. I have heard about 4lbs do you guys agree with that?

    Thanks in advance.
     
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  2. jim e

    jim e Hall of Fame

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    According to the 2008 Fall/Winter issue of the USRSA Digest, page 76 it says:

    "If a new customer has been getting his racquet strung on a spring-type machine, and you're using a drop weight or continuous pull machine, you should lower your reference tension by 3-6 pounds to accommodate the difference in the pulling mechanisms."
     
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  3. Valjean

    Valjean Hall of Fame

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    "Different string materials and constructions, and different racquet head sizes, will require different amounts of compensation to match the stringbed stiffness produced by a constant-pull machine to that produced by a lockout machine. For racquets with smaller heads and/or with lower elongation strings, use tensions toward the minimum..... For racquets with larger heads and/or with higher elongation strings, use tensions toward the maximum..... "
     
    Last edited: Sep 14, 2008
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  4. 000KFACTOR90000

    000KFACTOR90000 Professional

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    think 5 - 10%. For 60lbs the correct offset is between 3 - 6lbs but just from my own trial and error I found 4 lbs to be right on the money. (6lbs felt too tight)
    ps thanks for the poly polar tip!
     
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  5. Ljubicic for number1

    Ljubicic for number1 Hall of Fame

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    Thanks for the tips guys, the racquet in question is a pure drive roddick with full VS Gut.
     
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