Alright so here are the results I've got so far.
In case you're a little obsessive, here are the details... BG80 (yellow) vs VS850 (white), both strung at 29 lbs (10% prestretch on the WISE) on two 3U MXJJS the same day, one after another. Attachment 147916
So far, it's not very conclusive (yes VS850 has lost a little more but it's nothing special). There are 3 options:
-The VS850 will start to drop like crazy from now on
-I'm a very bad stringer
-People tend to exagerate with tension loss, especially when it comes to VS850 or how the zymaxes are amazing are retaining tension when IME they're no better than other strings. It puzzles me how someone can seriously say he has used a racket for over a month and that the frequency didn't change one bit when it'd clearly drop by itself anyways and a good 10hz per playing session
I'll keep filling that table the next time I play. Oh and it's interesting to note that there was nearly a 30hz difference between the two strings at the same tension.
10% prestretch isn't enough for vs850. Right off the bat, you already have a 30 Hz difference which amounts to 1 lb difference. As time goes by and as you play more with it, you're going to see a faster drop in frequency with the vs850 than bg80.
That's why I used to manually prestretch vs850 by hand to get out 6-8 inches of slack before handing over to my stringer. This is better than doing 20% prestretch, which would reach excessive tensions if you're stringing above 28 lbs already.
After 24 days and about 10h of play each, BG80 is just as bad/good as VS850 in terms of tension loss.
The adipowerpro I strung was weird. It was at a whooping 1337hz at 29lbs right out of the machine and lost 75hz and 91hz after one and two days respectively. After about a week and 5h of playing, it seemed to have settled at 1214hz. I've never seen such a big drop over the first two days... it'd be good if someone could string it too and see if it wasn't just a fluke.
Last edited by blableblibloblu; 08-28-2013 at 05:11 PM.
just a few extra out of the machine frequencies:
BG65Ti 30lbs 1281hz
BG65Ti 31lbs 1306hz (impressed by BG65Ti, might be my new goto)
Adipowerpro 29lbs 1337hz (I don't understand how the first one I strung had such a big drop (91hz after 2 days) and the other one 65hz in 2 days... There was no knot sinking in or anything)
I am wondering if anyone uses ClearTune on iOS. My question is the frequency in Hz from ClearTune cannot match with that from CarlTune. It seems to me that the former is just a half of the latter. Am I right? Is there any way to make the frequency in Hz from ClearTune in the same scale as CarlTune to make them comparable? Thanks!