I know it's about the only thing mine shows no leeway on. Failed me once for it being delaminated too, it was peeling a tiny bit on 1 corner, never mind the 120db exhaust, that peeling corner was crime of the century.
Bad man!
We could learn a lot from crayons; some are sharp, some are pretty, some are dull, while others bright, some have weird names, but they all have learned to live together in the same box.”