ok, so I havent gotten fairly decent with my airbrush at this point but there is still one big thing eluding me. My airbrush, I'm using an iwata eclipse c, says it can do "hair fine lines". I can't seem to even come close to that! Smallest I can get is about 1/8th of an inch or so and even that has like a shadow around it. Do I need a different tip, different compressor (I'm using the compressor for my nail gun, etc at about 25psi) or what? Any tips would be greatly appreciated