DanielS: sure, manual touch-up for one-off, but not for thousands. In fact, for a prototype, I've already ground off the bumps on the receptacle to make it fit a prototype board that did not have the cutouts, works fine.
ConKbot: 0.6mm. I was looking for a laser engraver to make Mylar stencils, and apparently the commonly available lasers won't go through glass nor fiberglass. And if possible, it sounds specialized, which would greatly narrow my selection of fabs. Can't hurt to ask, though.