Brake Myths
Here's an article I ran across this morning dispelling a few popular brake myths and common beliefs. The author does a pretty good job explaining how things work in the real world. Link
Forum Discussion
I'm calling BS on number two. As someone who used to machine the rotors, I can say, unequivocally, it is entirely possible for rotors to warp. I've personally machined my own rotors flat, only to see them warped again. Heat cycling cast iron can and does result in movement as the stresses are induced and/or relieved. There is a reason the OEMs have a tolerance for the runout of a brake rotor...
As someone who designed a performance brake system based on Carroll Smith's design tutorials, in a small open-wheeled Formula car, I assure you there are advantages to cross-drilling, namely that it increases the surface area and reduces the weight over a solid rotor. Anywhere there is a polar moment of inertia gain to be had, it's absolutely worth finding it for acceleration and braking performance.
As someone who designed a performance brake system based on Carroll Smith's design tutorials, in a small open-wheeled Formula car, I assure you there are advantages to cross-drilling, namely that it increases the surface area and reduces the weight over a solid rotor. Anywhere there is a polar moment of inertia gain to be had, it's absolutely worth finding it for acceleration and braking performance.
