Well, what will happen is that I need to apply 4-5 coats before it looks right. Either the color underneath will show (this particular hit has some blue molded pieces), or it will streak, or collect in the corners and look too thick. Invariably, the fine details will be covered and lost.
So I try primers... white primers, and by the time i get the paint on, it looks too thick.
Airbrush works well, except I'll mess it up again when I go back to paint neighboring dark regions, and get discouraged.
Basically, I hate painting white ;(
I do like that color scheme! Light gray-blue... rare colors on an Valkyrie