I have no idea why so many people have trouble with Ateks and their nozzles using acrylic paints.
All I use in the 470 is acrylics, and only 1 nozzle, the tan one.
It's been 2 years now, and the nozzle has NEVER clogged on me, and only twice has the brush itself failed me and needed a damn good cleaning.
Otherwise she still gives clean spray patterns and nice fine lines.
Paints I use are Gunze Sangyo and Tamiya, both thinned with Tamiya X-20A, doesnt matter if they are flat or gloss or any inbetween.
I must add that all my paint/thinner mixes are done with a 60 cc syringe, so maybe I have found the correct balance to suit my brush type.
Dont get me wrong, this does not make me an Aztek only man, but till I can find a Badger, or maybe an Omni for a decent price here in Australia, then I'll use what I've got.