Originally Posted by chompino
Thanks for all the compliments guys! The brakes have been awesome so far.
As for the orientation of the rotors, the slots don't really say much. It's the direction of the internal cooling vanes between the rotor surfaces that matter. The internal vanes need to pull air through the rotor from inside to outside.
You are correct - the vanes are what matters. If they're right, the rest doesn't matter.