Looking good. How long is it taking you to paint a regiment like that?
With the spray paint thing, I usually find the best is to put on thin coats, applying each new coat while the previous one is still tacky. So give it a light dusting, wait a few seconds, give it another. With GW sprays that dry quite quickly I find I spray one side of maybe 10-15 models, flip them over, spray the other side, and by the time I'm done with that the first side is tacky and I flip them back around and spray the first side again, repeating 3 or 4 times.
I've screwed myself a couple of time, though, when going to spray only a one or a handful of models and I finish spraying one side too quickly because there's not a lot of models and go back for the second coat too soon. Its also tricky when the weather is cold and the paint doesn't dry as fast.