tknight,
I can relate to your situation, and also have the badger 150 as well. Even after what I consider a thorough cleaning, sometimes the airbrush 'spits' the paint out. It seems to come and go with tip/needle changes. This conditions seems to happen with acrylic as well as enamel paint. My gear includes a badger compressor, regulator & moisture trap.I usually don't use more than 10-12 psi. I build mostly /148 scale planes, and those monogram/revell bombers need considerable coverage.:)
It can really be aggrivating to get your kit ready for that paint job, and have a 'spitting' airbrush threaten your work.
I'll second Pixilaters reply, and that tearing the unit down and completely cleaning the nozzle/head/needle will greatly help tame the 'spitting badger'.:)
Also, you can get a set of fine bristle, pip cleaner like brushes from Micro Mark. I bought a set, and they can really get into the nozzle tips great, even the fine tips!
I also clean the brush after each color and finish any paint session with the brush clean and ready to go for next time.
Good luck!
Steve
minutes to buy, hours to build