Thanks Denny. I see now that you did say a "couple" in your previous posts. Yes, rattle cans are not the most efficient way to paint, but sometimes it is the easiest considering mixing and clean-up time when using the spray gun...especially on small parts.
Like I have said before, I use Rustoleaum satin black in both rattle cans and through my HLVP gun. The gun is only used when I have a large part to paint (i.e. fender liners, radiator support, etc.). Otherwise, I just use rattle cans. Also, I find it easier to get into nooks and crannies (an engine has a lot of them) with a rattle can.