Machined rotors must look mint. Iv seen some scalloped 12a rotors by chip ursu, they were radical, very large, almost into the commutation chambers. Would hold their own as a piece of art work.
Would cool to see how yours compared
The seals are a great piece, some if these soft seals don't make sense to me as they will wear fast, not good for road use, IMO, and won't last very long in race application but that just an opinion. I don't have the means necessary to test them.
Probably a question you won't answer but what are they made of?
I'm thinking iron based maybe, iron is self lubricating, strong but not too brittle, and also won't wear down excessively OR wear the rotor housings....