How to avoid coarse/rough finish?

What are the most important things to remember when one wants to airbrush a smooth, shiny coat of paint and avoid the coarse, rough texture I end up with all the time?

I have a good set up with Anthem 155 and Campbell Hausfel compressor with a moisture trap but rough finishes continue haunting me.

Rough finish is a sign of the paint drying before it gets to the model.

Rather than repeat myself, just go Here and read about it.

Avoid what you are doing presently…[8D]