Quoted from John_I:This is odd. Is it all of the rubber going bad or just the flipper rubber? White rubber looks yellowed when it is old, so I am wondering what the problem is here.
They are just "chewed up" on the right side of the theater and on the slings. I think the sling rubbers are too small and stretched too much and the updated the manual to say use 2.5 inches instead of 2 inches. The flippers still seem fine on mine and I do not plan to replace them yet. No yellowing on anything.