Brake Rotors

["Mike Smith" <Mike.Smith@bbdo.ca>]

I'm in the middle of dealing with restoring the front disc brakes on my 3A, and 
wondered if anyone had the spec for the minimum thickness for the rotors. Mine 
seem fine for runout, but I wouldn't mind getting them skimmed. I know the 
manuals allow for s 6thou cut, but nowhere can I find a min. thickness spec - 
and I'm not sure if these have ever been lightly skimmed before.
Currently they're .4275" and .4150" 

Many thanks,
Mike