Hello this is my first post. I just picked up my first pinball R&B and I probably made every mistake being a first time buyer. My playfield appears to be in good shape except for these two sections near the flippers. I can’t seem to remove these black marks. I used novus 1 and 2 but no change. I want to try and get these out before waxing it. Would anyone give me some expert info on how to get these out?

Also can anyone recommend a playfield support for this playfield. When i lift out the playfield I’m constantly catching parts on the box. I saw one on Marco but I’m not sure that works.

Any info would be awesome. Thanks so much

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