Hey guys, just got my new Paasche airbrush in last night. It is double action. Tricky to get use to. So let me ask what the best set up is. Size of needle? Size of tip? I can tell how to determine the needle size by the notches at the end, but how do you determine the size of the tip? Is it labeled somewhere? I am shooting acrylic paint and it was spitting and splatting. From what I could tell it was b/c I need to thin the paint with water. Is there a certain ratio that works best? Any methods you guys know that thins it best for the airbrush? I am using around 22 psi with the tip that came standard on it. The needle is size 3 currently. Thanks guys!