I'm back from vacation and not enjoying the shitty weather - day three of on/off rain and no sun now. I didn't want that to stop me from riding, so I figured I'd do a little spin on the trainer. When I was swapping rear wheels, something caught my eye. BOTH chainstays have significant gouges in them from tire rub. I've heard of a misaligned rear triangle causing rub on one or the other, but this is both equally and quite deep. Right through the paint and through at least the top layer of carbon, I can easily feel the indent with my finger. I've never noticed this damage before and I find it hard to believe it's caused by my new wheel/tire package because I actually went down from 25mm to 23mm tires. I'm wondering if this isn't caused by the trainer and the massive amount of BB flex this bike has while clamped in. The chainstay is already a tight fit around the tire as-is, but there's still a solid 1/4" clearance. Is there a way to test if it's still rubbing or if it's old damage? Should I be taking this back to the local Felt dealer to see if there's a possible safety issue?