[s-cars] Rotor hats and rings

[Eric_R_Kissell at whirlpool.com]

What does warping have to do with thermal mass?  And would we expect a high
or a low thermal mass to warp more?

For that matter, what does warping have to do with turning rotors?
Changing the relative thickness of adjacent locations of a metal ring that
heat cycles seems to me like a way to create more warping not prevent it,
i.e. a temporary perceived improvement.

The best way I have found to correct warped rotors has been to undertake an
"Itallian tune up" by  achieving a high rate of speed and then braking
aggressively to near stop several times in a row to get the brake rotors
very hot and then driving to allow the brakes to cool before stopping
again.  Thus, I would expect running on a track to be a good way to reduce
warping unless one ends a track session without cooling down the brakes and
then they might warp due to uneven cooling off the track.

I am curious regarding the science of warping.  What have people
experienced?

Eric
Tiffin, OH