Dumb question here- I have a Bally Playboy playfield from CPR I got last year, and was just getting ready to do a playfield swap. This is just going to be a nice player machine (the current PF has an overly on it). I'm probably stupid, but just realized that the CPR playfield doesn't have the grey paint on the back, and is raw.
Is it necessary to paint? Should I? Right now this PF looks good on the front, and I'd be nervous as heck to F it up with runs.
If necessary, what paint and color?