Let me add this so you won't think I am picking on you Jeff.
You can push down the trigger slightly and get less air than you can pushing it all the way down, but it is not worth even trying because it is impossible to replicate that same amount of air each time you do it.
It is hard enough to master the trigger travel for paint flow without trying to complicate it even more by trying to control the air and that is what I meant by my earlier posts.
What is funny about this subject is that Iwata claims you can control the air pressure with the trigger alone and yet their new "High-Line" airbrush is supposed to control the air pressure to the tip, so they are contradicting themselves.
That's marketing for you.
Mike
“Wisdom is the right use of knowledge. To know is not
to be wise. Many men know a great deal, and are all the greater fools
for it. There is no fool so great a fool as a knowing fool. But to know
how to use knowledge is to have wisdom. " Charles Spurgeon