[dremd]

I have not read this entire thread; but I have noticed that some rotors rust MUCH more quickly/ easily than others.

My Data is from hosing off cars that went off track when they get back to the pits; some will have a very noticeable layer of rust when they get in to their pit, and others have basically none. And yes I was fairly scientific making sure to wash every cars brakes. BUT not all cars had the same rotor temp when they came in; so they may be skewed.