So I played R&M this weekend on a pin I don't normally play and was scoring in the millions, whereas normally I'm not even close. I could see the ball wasn't sliding or moving normally. Later I saw them cleaning the playfield and asked what they were using. She said Naptha to clean lol. I said that's not a good idea, but she wasn't having it. Moral of story? Strip all wax off and get new high scores!