I have been using the DeVilbis Dekups system for the last 4 or 5 years which is similar and love it. All the different colors for a model are mixed and sit in the bench, each color has a flexible plastic cup that is capped and sealed with a plastic plug. Attach to gun, with gun inverted, pull triger until cup collapses and paint gets to nozzle. Paint away even i inverted position if needed. When finished, remove air line, invert gun and pull trigger to let in air to paint cup, remove cup, cap and store. Reattach air line and clean gun using siphon bottle with thinner to clean gun. Change color cup and spray away.
Yea well, times have really changed that's for sure.
But I gotta tell ya, for the "few" individuals, yea I know "few," is it few, in fact it's less than a few who would elect to use professional spray equipment.
With 4500 members and what? 50 to 100 guys using this kind of equipment and spending the money for canned auto paint? It's a few.
So, for the 4400 other members in the Forum, who BTW seem to be silent, and aren't interested in going down that road, you would be surprised the results you can get using aerosol cans.
So easy and simple, nothing to shelf, just toss the can and the stuff is cheap, really cheap.
Even the fuel proof 2 part clear is available in aerosol cans.
I'll help anyone with questions who's considering using aerosol cans for their finishes.
Even front and second row finishes are possible. True!
CB