I wrote a big post about Mission Models paints a few weeks ago and they are really game changing paints. The entire point was to make an acrylic paint that worked like enamels do when airbrushing. This way you get great results with no fumes at all. They are paint made by modellers to work with todays needs and that is something I really respect. The first 2 rounds of colors have come out for military and agrocultural colors. The 3rd round is in progress right now for auto colors with a gloss fininsh.
I really know what you are saying about finding that paint and making it your go to. Acrylic paint is a real pain when it comes to consistent results airbrushing. This Mission Models paint has a specific process and when followed the results are outstanding. Tamiya paint used with their lacquer thinner is amazing and really the standard with many.
Auto and military guys are worlds apart when it comes to painting and auto guys have so many tricks of the trade, mostly actually using paints made for actual car painting. I would keep an eye out for the upcoming Mission paints though, you may add a few years to your life, lol! Check out their web site and even shoot them an email, Jon is a really nice guy and emails you back very quickly.