Hello all. OK so I just put a 50's Classic Vibe P-Bass neck on a Sting Signature body. It fit the pocket perfectly and the bass is great, plays beautifully and the neck is straight as an arrow...BUT... It seems I can't make the thing not buzz on the frets unless I prop up the saddles with a couple of nickles stacked on top of each other. And I have the height adjustment screws just about maxed. Obviously something is WRONG...But what?? Would a solution be to sand the back of the neck heel a bit to make it rest deeper in the pocket? Should I sand the pocket? Or is neither of these the issue??