On a pinball 2000 machine? Something that can be fixed, arrested or the start of a spiral? Also wondering opinions on how much it would devalue a machine like RFM or SW (PB2000)
I'd say it's a pretty big deal. Left alone it will continue to occur. It may even continue if you were to repair the damage and re-clearcoat the playfield. There were some weird binding issues with the clearcoat used in P2K games it seems as this is a pretty common issue.
the pictures can be cropped in windows to make them smaller and then uploaded.
have the same issue with a funhouse on ALL the inserts. my theory is the machine was in a flood or very humid enviroment. when you run your hand flat on the PF you can feel all the "bubbles". one possible solution, short of PF replacement is to drill a very small hole from underneath and into the bubble without going through the mylar. that should be easy
using a needle into the hole and injecting clearcoat into the bubble and pressing the bubble flat from above.