I'm trying adjust my Incra Miter 1000 so there's no slop in the t-slot. I've got it adjusted so it's good for most of the length of the t-slot; but apparently my t-slot is a little narrower in the front and back of the saw (Powermatic 66). So the miter gauge binds up at the start and end of a cut. Any suggestions for how to fix my miter slot? I was thinking of taking some wet-dry sandpaper like 320 or 400 grit and trying to hone it or something.