Ive had mine for over a year, and ive shot it a million times. My string is damn near still new, i do wax it all the time though. You must just have a nick on your cam or something.
I've never had a problem, except for a 1/4 dry fire...Which was an excuse to get rid of the 06 hoyt fuse strings. Junk if you ask me. They have gotten much better.
The stock FUSE strings are complete junk or at least they were on mine. When you go to replace them go to Bucknasty and have him put the halo serving around the cam.