Has anyone bought the "brembo" cross drilled/slotted rotors off ebay? I know they are blanks that this guy is drilling and/or slotting. Just wondering if anyone knew if there were any problems with them. I work in a machine shop and was thinking as long as the guy check for runout of the rotor when done, they should be ok. Right? I've thought about just taking mine off and taking them to work and cnc milling the slots and blind drilling the holes(ie, the cross drilled holes don't go thru).