Poly string used in TW demo racquet?
I'm currently demoing a Tecnifibre TFight 325 VO2 Max ordered with the poly string. The string is black and looks like 17g, but they are no markings on it whatsoever. What string is used and at what tension.
USTA 4.5 NTRP
4 matched Tecnifibre TFight 325 TPs