So, I recently got my first polyester coated fingerboard. Just today I was playing it and sliding around noticing a kriiiiiing sound in a few places. The bass doesn't buzz until I slide up the fingerboard. It's less than a year old, so could the bird's eye maple fingerboard be expanding in spots, too? The tech at the store really didn't know weather to make heads or tails out of anything, other than the refin or leveling to such a perfect extent was beyond his training. Any thoughts?