In the end, I could have bought the aluminum hubs from Dr. Diff for the same money. The rotors that I had turned down were $25/ea. I paid a guy $100 to turn them down into hubs for me, and now $150 worth of studs. He sells his for $300. Oh well. Early on it was proof of concept and losing $150 vs $300 if it didn't work didn't sting as much.