Wrong strings can kill the value and playability of a bass - I know! I take back almost everything I said bad about Fender P-basses. Mine has been resurrected with Roto 77s and I've had an epiphany. It really is a handsome chunk of wood, and it has a certain aesthetic 'flair' to it, so I can honestly say that my opinion of all things Fender might have been - er, slightly jaundiced. I'm better now and the doctor says I can even use matches again.