Frustrating Sunday of work.
I tore down the DX completely to prep it for the frame mods coming up. Afterward, I masked stripes on the polished 57mm hoops and shot them with self-etching primer. When that had dried, I shot two coats of color. When I went to remove the tape, a bunch of the surrounding paint started coming with it. I was able to remove all of the paint using only my thumb/finger nails in about twenty minutes. Etching primer didn't etch, I guess.
Screw it - I'm just going to run full-polished wheels, I guess. I don't want to go through this again, and masking them took an hour. If I had to rough them up, pull the tape and re-mask before paint... just not worth the time and labor.