No idea. I use only Testor brand paints. Keeps the confusion to a minimum. Testors suggests two methods:
Method 1 - Thick paint and High Pressure (around 30 psi)
Needle will be partial retracted.
Method 2 - Thin paint and Low Pressure (around 10-15 psi)
Needle will be fully retracted.
You can also checkout this PDF: http://www.testors.com/tes_cds/hobby_guides/06 Airbrushing.pdf
Jesse