I just may have the cure for you. This may be an add-on in the future, so if you're interested let me know. The rotors pictured are Baers that generally rust shortly after installing them. The slots/vanes and holes develop surface rust that leaves everything with a brown tinge. The only way to remove it is using a dremel with small pieces of sand paper through each hole, and applying a high temperature clear coating - Giving it a polished look. There is more involved, but that is just a rough idea of what has to be done.