Son of a ...
So I'm getting an entire new frame from Salsa. They said they also found a crack at the bottom bracket, in addition to the seat stay.
I hope they have this stuff fixed the 3rd time around, because that rear triangle only has about 6mo warranty left (front triangle has 5yr).
I'm seriously looking into swapping out to a different mfgr that has a longer warranty. I guess I need to know what the cost for that seatstay is out of warranty, though.
LBS has to destroy it, but they said they'd keep enough of a trophy of it together for my wall. So that's a bonus, I guess.