I have an 83' p bass and my band tunes down a whole step, d,g,c,f then drop the d a whole step so it's c,g,c,f. I really like the sound of DR hi beems but even the largest four string set they have is a little sludgy and slinky. I've always wondered about putting on a b string in place of my e string because b is closer to c then e is, but i've been worried that the added tension would mess up my neck. Anyone done this and will this screw my bass up? Thanks. PS. the trust rod adjustment is broken on my neck so i cannot adjust my trust rod so it's a big deal if something gets messed up and i can't afford that.