I don't see how the pad material would transfer when cold? The only way you should be able to get that imprint is if you leave the brakes applied while hot and the rotors aren't turning. Might be worth pulling the pads out to take a look at them...make sure they aren't separating from the backing plate or anything...
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2017 Corvette Z06 7MT | 1LE | Stage 3 | DSCSport
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