Hello everyone! I'm new here, this is my first post, and I've searched out this question to no avail. I just recently purchased a MIM Jazz bass which from what I can tell was made in 1998. Although I'm new to bass I'm not by any means new to guitars and setups. My questions is this . . . just how do you adjust the pups on a Jazz bass? I've been to Fender's site and have read their set up guide, but I'm baffled. On a Strat guitar it's simply a matter of turning the screws on either end of the pup, as the pups are mounted to the pick guard. On a Les Paul the pups are mounted to the mounting ring which have adjustment screws. On the Jazz bass, though, it appears that the pups are mounted directly to the body. When I turn the screws they either just come out or tighten, but don't move the pup. Are shims needed? Let me just add that this site is great! I never played bass before and I must say I am LOVING it. I look forward to your replies.