Hi. I've got an old Fender bass (I'm the original owner) finished in nitro. The finish is flaking off at locations where there's dents. The finish is LPB. Is there any way to prevent more from flaking off or is it not a good a idea to touch up an original finish? I've since retired the bass and take it out only once in a while (it was played for a long time and has it's share of dings and dents). Thanks!