Scarebird Brakes

Has anyone redrilled scarebird rotors for sbp? Thinking about it someday, but want to keep Cragars.
I've done both ways, to retain the 5 on 4" (just drill the rotors with the supplied pattern) for the wife's dart and 5 on 4.5 for my rally wheels( just drilled the Hubs and used screw in studs)