How do you thin acryclic craft paints?

It sounds like you did! I have some crafts paints that are specifically made for the airbrush, and they are definitely thinner. My problem with airbrush craft paints is the same with Polly Scale - not many colors to select from. That’s basically why I turned to craft paints in the first place. Guess I’ll just have to be happy with what I can get. Thanks very much for the explanation!