I have always had good luck with just leaving it in the jig, filing and sanding it flat, then hitting it with one of those really nice fingernail files my wife uses, they are 180 on one side and 220 on the other and are wide and durable enough to fine tune without rubbing them on something, I can look at everything and make adjustments where needed and I also use them for scrubbing down cork thicknesses for double reeds too... to each his own.