Just a idea, but when I purchased a Badger airbrush years ago, they had really well written instructions with the brush. It explained everything, but the thing I remember most was how they mentioned using water and newspaper to get an idea of how the brush worked. You filled the airbrush with water and sprayed the newspaper to get a feel for how much “paint” the brush would put out at different settings and pressures. It did give me a good idea of what I could do with the brush.
After that, there is quite a bit of trial and error before arriving at a point where you are comfortable with the results…
Tom
