Playfield plastics break. They are expensive or impossible to replace. The vulnerable ones should be protected.
There are a few outfits that sell kits to protect many of your investments:
I've learned to make them by hand with polycarbonate and a belt sander from HF.
Here's the question:
What plastics have you ever seen broken in your collection or elsewhere?
I'd like to build a master list so that people can quickly get a sense of WHICH plastics tend to break in which games.
Thanks for your help in building this resource.
(note: Eventually we'll get a reference to EVERY single SS and many EM's so there's no point "linking" the game up top)
(note: I'll thumbs up you, when I add your suggestion)