>>8042664Time for some test painting.
First off, despite what it looks like it's not a double action, it is a weird kind of single action where the trigger controls the paint flow but NOT the airflow (which is constant).
Now for some bad news: the nozzle leaks, meaning the paint comes out even if you don't touch the trigger. Not surprising given the quality of machining.
So the first thing I did was replace the needle with some properly machined spares I had.
It fixed the leaking, but the airbrush is supposedly 0.4mm and the only needles I had were 0.3mm and 0.5mm. They sort of worked but 0.4mm should work better.
This is not an airbrush for any kind of detail painting in any case.