The stringnear the bottom cam is starting to come apart and its begining to freythe hole wayaroundboth cams. I guessing thats a good indicator that i need a new string.I havent been shooting it because im afraid the string might snapand take off half my face or something. Ive only been able to find one string listed as 86 1/2'' and thats a stock string from martin. Should i just order a string from martin or get a different one. I would like to get a quality string that willlast because i shoot a lot any suggestions?