Again, you keep saying this is obvious, when to me and many others it is not. I know plenty of people that have played for years with poly and have no arm issues. I also know numerous people who use synthetic gut in flexible heavy frames and wear arm braces. If poly is so harmful, why do so many people use it with no ill effects? And why do so many people not use it and still suffer from arm injuries? Could it be because there are other underlying issues? Examples include: stiff racquets, light racquets, muscle imbalances, improper technique, etc...
Last edited by Venetian : 02-18-2013 at 12:15 AM.