I have to agree with the earlier post, painting is 95% prep work. I have sprayed 5 planes with either poly tone, super flight, and PPG paints. A friend asked if I would spray his wing after a repair and I agreed to do the job using his Stewart paint.
I called and talked to the Stewart folks in Ohio about the process. I came away with a concern and that was the amount of CFM's required to flow their paint, pressure is always available but not enough CFM's and the paint will not atomize properly.
So I used a smaller HVLP Sata 4400 mini gun that requires only 6CFM as compared to a Devilbiss finish line at 13 CFM. It was odd spraying at such a fast movement of the gun to keep the paint as a fog coat but with a practice panel I got the hang of it with just a couple passes. Now when I spray with most paints I have the fan wide open and the flow control also very open and control the amount of paint applied to the surface by distance and speed. I was amazed at how long it took the fog coats to set up and be ready for the next fog coat, 10-15min on the first fog coat, 20-25 on the next fog coat. For the final coat, you need to move in a bit closer with the gun and slow the pass down just a bit to get a good finish. As you spray this last coat the paint needs go wet behind the gun speed by about 5 seconds. If you spray a full wet coat it will run or set up with pin holes from gasing out.
For my own Kitfox I am going with the Super flight system with PPG paint. I know this system best and have always gotten great results.
Just my experiences to share with you, all systems seem to work for some and not others.
Jim