Nelson Paint Works... PERIOD!!!
I have used this system on my last four scale airplanes. On my big aerobats I still use monopkote, but for scale nothing is as easy and as foolproof as this water based, easy on, beautiful flow-out, easy clean-up "stuff".
I have made believers out of plenty of guys at the field. My Ziroli Stearman in scale yellow and pale blue is a knockout. Tape and stich detail on Coverall w/ nitrate dope and a final coat of 1/2 gloss clear and 1/2 flat clear. Nobody will ever believe you put it on with a foam brush!
I'm currently finishing a big P-47 and Jerry not only recommended a great scale paint job, he sent me a color copy and custom mixed the paint!
Learning curve from rookie to expert is less then 20 "strokes" and a good sense of how many drops of water you use to make it flow. I add a couple drops with each new coat... I have ONLY used the foam brush method, never any spray or brushes.
Try it, it works!