I was wondering how long it takes to wear out a frame. Im not talking about actually getting physical cracking in the frame, but just until it loses its playability and goes "dead". I ask because I've had a BLX 6.1 90 for a year, using it 5 days a week for about 3 hours at a 4.5 level. Not to mention its been through 25 or so string jobs. Its starting to feel a bit dead to me. Wondering if its wearing out or its all in my head.