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  1. #137
    Regular Member visor's Avatar
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    ^ I use both and get identical results. Sounds like it's measuring the harmonic. How do you sound the stringbed?

  2. #138
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    I did the same to sound the string bed for both two apps. The frequency I got from CarlTune is almost twice than that from ClearTune. For example, if I got 1100 Hz from CarlTune, it is 550 Hz in ClearTune. I am wondering if it is the setting issue in ClearTune. I had tried to tweak ClearTune settings. However, it doesn't work..

  3. #139
    Regular Member visor's Avatar
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    Strange. Oh well, at least you know to double it. Or stick with CarlTune.

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  5. #140
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    BG80P 31 lbs
    out of machine 1320hz
    3 days 1273hz
    2h of play 1265hz
    4h of play 1259hz
    6h of play sadly broke it on a mishit near the bottom knots

    I've been impressed by both bg65ti and bg80p and I probably will have them as go to's from now on.

  6. #141
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    Quote Originally Posted by kwun View Post
    sorry. as these are clients' rackets, they are measure right after stringing.
    Actually, I would prefer the frequency data to be collected right after stringing!
    After all, we use the observed frequency of string bed to measure the theoretical string tension. It is well known that there will be significant drop in tension as well as in frequency right after a racquet is strung. As the theoretical tension is given (the pounds you string your racquet), the string bed frequency observed right after stringing should be very much close to the given tension. If frequency is reported after the tension reaches its plateau, one cannot be sure the right tension the current observed frequency corresponds to.

    Ideally, I would like to see exactly the frequency data @kwun collected right after stringing. For example, I can sort out the following table that relates different pounds to their frequency for BG80 (ideally for the same type of racquet).

    String lbs Frequency
    BG80 29 1229
    BG80 27 1182
    BG80 25 1164
    BG80 23 1046
    BG80 21 1030


    The frequencies in the table best represent the corresponding theoretical tension in pounds. You can also calculate exact the amount of frequency that represents a pound (can vary at different tension).

    In my opinion, it's player's job to monitor the string bed frequency after the racquet is strung. Thanks to the table, the player can now understand the current tension his or her racquet retains. If initially the racquet is strung with BG80 at 29 lbs and the frequency observed after a month is 1160 Hz, the player can see there are about 4-pound drop after stringing. If the player feels that the tension now is best for him at the current frequency, he also knows that his ideal tension for BG80 is 25 lbs. However, due to the significant drop in tension in the first several days after stringing, the player can only have his or her racquet strung at 27 or 29 pounds and wait for a period of time until the tension slowly lands to the plateau that is around 25 pounds.

    If the goal is to measure tension with observed frequency, it would be better to measure the frequency right after stringing when the frequency best represents the given theoretical tension.

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  8. #142
    Regular Member Mark A's Avatar
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    Quote Originally Posted by blableblibloblu View Post
    BG80P 31 lbs
    out of machine 1320hz
    Interesting - this is how my NR-ZS will be strung. Wonder how much the smaller head will affect the pitch...

  9. #143
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    Yonex AT900P BG80 27/25 1189
    Yonex AT900P BG80 27/25 1182
    Yonex AT700Limited BG80 27/25 1191

  10. #144
    Regular Member Mark A's Avatar
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    Quote Originally Posted by Mark A View Post
    Interesting - this is how my NR-ZS will be strung. Wonder how much the smaller head will affect the pitch...
    Turns out that I gained 10% on the usual readings - that's one small head!

    Got a couple of new Victors bedding in at the moment... readings to follow.

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  12. #145
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    This is an excellent thread for me to get an idea on when to change out the strings. Time to start recording frequency on my strings/rackets.

  13. #146
    Regular Member Mark A's Avatar
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    VS850 - no prestretch:

    0 1295
    1 1281 1.08
    3 1267 2.16
    6 1252 3.32
    12
    24 1210 6.56
    48
    72
    1st session 1175 9.27
    2nd session 1154 10.89

    11% after two sessions? Dear lord...

    I hope prestretch helps, otherwise I'll be stringing every two weeks!

  14. #147
    Regular Member visor's Avatar
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    ^ You really need pre stretch for VS850, either manually or by machine function. Or you could string 2 lbs higher and let it settle down to your target.

  15. #148
    Regular Member Mark A's Avatar
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    Quote Originally Posted by visor View Post
    ^ You really need pre stretch for VS850, either manually or by machine function. Or you could string 2 lbs higher and let it settle down to your target.
    I prestretch every string manually, but I think I turned the WISE prestretch off while checking its percentage value.

    I can't really go 2 lb over, because then I'd be doing 32/34...

  16. #149
    Regular Member DuckFeet's Avatar
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    Vs850 in yonex ns200. 1155 straight away. 3 hours later down to 1125. 24/25+10% PS and manual prestretch also.

  17. #150
    Regular Member DuckFeet's Avatar
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    steady at 1120 for now. Only dropped a pound? Nice

  18. #151
    Regular Member visor's Avatar
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    Wait till you play with it...

  19. #152
    Regular Member Mark A's Avatar
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    I've only tested five or six strings so far, but VS850 isn't actually too bad - I've got a set of BG80 baking, and that's not doing well...

  20. #153
    Regular Member DuckFeet's Avatar
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    It can't be worse than mlxl. That gave me hope for one day then went soggy. I think it's made of wet bread.

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