i have not personally used a printed overlay, but i believe most people use the overrlay as a template and mark the hole centers with a punch or nail, the remove the overlay and then drill. drilling through the overlay will likely cause it to tear. if you are going with a solid black overlay, drill holes and then apply iy, then trim the holes with a razor knife. i like to keep mine simple, so i covered my panel with plexiglass. i spray painted the back side of the plexi black, for a nice glossy black finish