Bear with me, I have a couple more pics.[ATTACH=CONFIG]504130[/ATTACH][ATTACH=CONFIG]504129[/ATTACH]The first one shows where an area of yellowed shellac has come off. The shellac actually pilled up into pellets on the machine. The second pic shows two more yellowed areas. Should I keep going until it does like the first pic, or am I removing too much. It seems like the whole bed of the machine would eventually do this. Is this what i am wanting to happen? Thanks!