Recently added to my Young Family stable a Gretsch G6131-MY which is a fantastic guitar and I scored one from a musician who needed to thin the herd. It has a slight buckle rash on back but he strung this with 9's and put sharpie around the bridge in case he bumped it .. ouch.. nothing serious but I believe sharpie is delivered via some type of solvent.. question is which solvent is safe on Lacquer to make it liquid again to wipe off?? I have heard stories of use this or use that.. but never "THIS STUFF".. even WD-40.. lol.. i was thinking mineral spirits would be safe.. I cant really test it on pickup routs because this hollow body really doesn't have any.. Saved $ 1k on this guitar and its going to be a keeper for sure.. love the SPACE BRIDGE for adjustments for string height and string spacing.. very clever.. just does not have individual saddles.. but it intonates GREAT if you adjust the angle.. in case I go up in string gauge.. I may reveal more of the SHARPIE.. I just want to be safe.. Any thoughts?