They were prepped by Jet Hot themselves, so I can't help that.

At any rate, I think 30k miles in 3 year is prob a different sort of use than your parts see.
From talking to other coating places, they say the problem is my tri-y's have creases, and the coating gets thin in the creases, so it gives things a point to start wearing from early. That said, one of those coating places said it wouldn't have happened with Swaintech.

And yes, I wasn't considering anything not in the US.