I've noticed a lot of slop in my trem arm's movement. You can move it up and down a bit without it actually moving the bridge plate. The threaded part of the arm has a lot of slop inside the threaded hole. What can be done to tighten up the fit a bit? I was thinking maybe wrapping the threaded part of the arm with Teflon tape. I'm thinking this would only be a temporary fix though since the tape would probably begin to fray after a while and allow the arm to become loose again. Anyone have any suggestions as to what to do for this problem?