I have an early run Jurassic park pro that has some pooling around the posts and a couple chipped. Nothing horrible as of yet but did happen.
I fought with stern over getting a populated playfield and in the end lost the battle. They sent me a knee unpopulated playfield and a translite signed by Keith Elwin.
Wish it would have been populated so I could have easily swapped it and sent the other playfield back but I guess I’m still happy that if it really starts chipping bad I have a replacement.