Those guitars are quite different. Neck profile,
neck joint, different pups, and I believe the PBK has the old style
monkey grip. The issue of set-up is something you should definitely look into. A properly set-up guitar plays like a dream. Four broken strings in one hour make me wonder about your trem. Are you an extremely heavy picker or just whammy crazy? Is the guitar new? If so, it should have a return policy. G.C. has a 30 day return policy.