Hi all , I am looking at a Gibson Les Paul which I fret dressed about a month ago.The strings are being shaped into a kink around each fret , so if you look at the strings from the side you see a hump in line with each fret.This is only from about 3rd to 14th fret and seems to be only the plain strings.I have only seen this following a blow to the neck, but the customer says its always in the padded gibson case , and has not been bumped or dropped. Any ideas? Len