I have been using synthetic guts all along and I break them after about 10 hours of playing. I have good racquet speeds and people suggest me to try poly. I read that poly strings usually go dead after a short time. After that, the poly is the worst string in the world and you'd better cut it out and restring. So I am wondering just how long does it take for a poly string to go dead? More specifically, I am interested in Luxilon Big Banger ACE 18. To give you an idea of the string-breaking level of me. I just broke a set of Gamma Professional live wire 16G (63lb) in about 8 - 10 hours of playing. Thank you for giving advice for a poly noob.