I've been having a really hard time with my Wolfgang recently with strings breaking. One practice alone I went through 4 strings. They break during gigs also which is a real pain because it takes a while to change them. I've had it to 2 different techs who filed the saddles and while it did improve it some they're still breaking. Always at the bridge. Anyway the last guy I had it to suggested replacing the saddles with new graphite ones. He said they don't get burrs like metal and will improve the sustain somewhat. I like the guitar and don't really want to change it except to fix this problem. I think the name he used was Graph-tech. Anyone know anything about these? Will this fix my problem? They're not cheap so any input would be appreciated.