Paint Black Design on Hubcap

I finally got around to touching up the hubcaps. Two did not need anything. One had chips in the black paint that I was able to touch up with a small brush. I did have to use a primer first, at the flat black Rust-Oleum paint would not stick at all to the metal. The black paint on the fourth hubcap was all completely loose so I had to remove it all with a wire brush. I decided that I had to mask the whole hubcap with some blue tape as a small brush and wiping technique did not work (I used to be a house painter, so I have a pretty steady hand). I had to slice off narrow 2-3mm strips with a razor blade. This took me about two hours and drove me to the brink of madness. There were almost 100 of the tiny masking strips. As I was doing it, I thought the results would be awful, but the results were better than I thought. Would I ever do this again?

Hubcap.JPG