Okay, been to my two favorite bodyshop guys and both were dumbfounded (sort-of). On my 2000 Camaro, on the C pillar and up over the roof and back down on the other side, about 1/2 inch in from the window and T-tops on the leading edge, and again about a 1/2 inch in from the back window on the back edge, the paint and/or the fiberglass is starting to ripple.
No cracking of the paint so far. This started last summer just on the top front of the roof portion, and has now carried down the sides and has done the same on the back edge. It's happening no where else on the pillar or roof, or anywhere else on the car. Just in these two straight lines from side to side.
I have my idea of what the problem is, and one of the two body guys gave me the same answer but said he had never seen anything like it before. The other one was just clueless (this one at the dealer). So, if a dealer's shop hasn't seen this, I am hoping someone else has. Open for thoughts. I would post pictures, but you can't see it. Help!