Interesting. I restring a lot because I break strings a lot and have one racket that definitely seems to have lost some "pop" to it. There was a significant difference when I switched to a newer one...the local pro says that it can happen after about 25-30 re-stringings.
I need a racket with a tighter string pattern so that the string last longer...
NTRP 4.0 Pro Kennex Ki30 Mains:BHBR 17, Crosses:OG Micro 17; Gamma X-ST