I picked up a Space Shuttle a few weeks ago that had a new CPR playfield already installed in it. For numerous reasons (mainly OCD), I decided to tear it all down and do a full restore. While disassembling the top of the playfield, I noticed a small dimple in the playfield. The dimple is located just above the top most screw that connects the left metal inlane guide to the playfield (see pic). My guess is the four "pre" dimpled holes didn't align with the metal left inlane guide resulting in the top screw missing the dimple hole. Has anyone else observed this on a CPR playfield??? What's the best way to fix this dimple? Thanks for any/all help.