I know I’m not exactly providing a step-by-step guide here, and I feel bad about that. But we’re a little beyond that now, so let’s move on. Here’s the state of play. We have a model of a U.S. Navy fighter plane of the last world war in 1/72 scale. I painted the underside with five coats Tamiya White Gloss Acrylic, which is the only way I know to get a good white finish with a brush.
I had to let it cure for about a day, then gave everything a coat of clear flat (Tamiya Clear Flat mixed with Future/Pledge/Klear). This gave me the ability to do touch-ups and stippling using flat paint, otherwise the gloss finish would fubar the paint. Having flattened the white paint, I painted over it using the flat MM Acryl with only minor fubar, and was able to repair the fubar.
The stippling turned out fairly well, but I did some experimenting and can see that only a particularly funky sort of brush lends itself to this kind of use. I almost hate to say it, but if you can get one of the new Humbrol brushes (made from geniune cow hair, I think) you’ll find this type of brush works best for stippling. Right now, I’m thinking of getting a few more cow-hair Humbrol brushes if I can find them.
Still a little touching up to do, I think, but so far so good. The dark blue, which is very dark, IS NOT DARK ENOUGH. However, I’m not going to sweat it. It’s close enough for a plastic model.