Painting Problem Questions

Okay two questions. I am spraying epoxy primer (PPG) and it is going just fine but I am getting a textured surface. I can best describe it like a leather grain very fine bumps. I am trying to figure out what I am doing to prevent it from going down smooth. The next question is does it matter? Will the high build just use it as a "grip" surface?

Next question. 65 Barracuda door trim. There is a stainless piece that runs along the outside lower window how does it get removed? Also should I remove the doors to prime them?