What Pook is trying to explain is what we call a double wet coat. With the luxury of a paint gun and about an 8'' wide spray pattern the coats are over lapped evenly. Put the next pass about 1/2 way over the previous, some will overlap 2/3, it all works well. That method helps provides a uniform finish and works well with spray bombs too.
What you don't want is to get each pass to line up with the edge of the last.
This reminds me... ASE Master Tech recertification's and multiple mechanical ones are coming up.
Here is a tip for those looking to get a spray gun...
I have many, the high dollar SATA models from about $400-600 are fabulously expensive!
But, and its hard to believe but Ingersol Rand has to guns in the $60ish-100ish range. I wouldn't have believed it my self if...
We were spraying a 67 Camaro Marina Blue and circumstances beyond my control left me having to use the $60ish dollar IR gun, the other painter, (we two timed this project because of the tight schedule for the AutoRama) had one of the high dollar guns. The metallic and flop came put beautifully on the entire car. So seeing was believing and the gun that cost about 1/8 the price sprayed just as sweet as the big buck gun! BTW, we did win a trophy on that project too
So if you have a compressor and are looking for an inexpensive but good gun I hope that helps.