hi everyone, i have an old japanese made plywood from the 60's. it actually has a good dark thump to it for an inexpensive bass, but there is a waviness in the top specifically where the bridge meets the body on the treble side in the f-hole area. it kind of reminds me of a bad bondo repair on an automobile fender. cosmetics aside, is it something i should be concerned about? is there anything i should do about it? thanks!