I’ve done this a few times and have the Wheeler/Miles Gilbert Jig. The grinding and fitting is not the problem. It’s the holes for the screws. The darn jig screws tears em up. I know how to make a small incision with an exacto and how to insert the installation screws using soap and no problem with them. But the darn screws that attach the pad to the jig. The real long machine screws. Those always seem to tear up the pad to some degree. How can I reduce or eliminate this?