Best way to prep rallye wheels for paint?

Arghhhhhhhh!!! 1970Duster, with all due respect hun, if you have to "make sure" your powder coater blasts it first, then you're not hiring a coater; you're just paying somebody too much money to practice on your parts, and it's a pretty good call that the job won't last and you won't be happy with the results.

My thoughts exactly when I read that, and I don't even do it for a living.