Keep this in mind, as the seasons change always experiment with your paint thinning and compressor ratios throughout the year. They will change and alter how the paint sprays. There is no one recipe for each of us, you really do need to set up a practice run(s) and alter your settings to provide the best results for your situation.
Lastly, high-quality airbrushes and compressors are like any other machine, tool, that requires maintenance. Don't forget to replace o-rings if yours are older, these will dry and crack from the various chemicals we use.