Here are the final results. I wet sanded with 400, then 600. I mixed the paint 4:1:1.5 (paint, activator, reducer) and sprayed it on wet. They look just as good as a cut and buffed paint job, almost just as good. I'm very happy with the results.
Video of me painting the flow coat (video still may be processing, but I can see it. Check back a little later if you can't).