It seems to be an issue with a lot of ACs and it’s gotten ridiculous on mine. I have a very solid machine that I have cleaned up and enjoy playing since finding it last fall but the cupping of the plastic inserts is at the point of the ball actually stopping 10% of the time as it enters the A B C and D rollover lanes at the top. The inserts at the bottom are bad enough that a slow rolling ball will change direction radically.
My question is, are there any methods to level off these inserts without using the car clear coat stuff that runs everyone out of the house? I just don’t have a place to do this outside. Thanks. Danny