>>5474408What the others have said is true, and here's why (so you can realize what's happening when doing it). Your airbrush spray is like a small cone of paint in a large cone of air, which spreads out as it hits the surface
the more of that secondary air you have drying the paint you have already sprayed on, the more it ruins the gloss
you have to spray gloss somewhat heavily but quickly so that you don't spray too thick
lower pressure and retarder can help, but with practice you will just get the hang of it
