Hi Les,
What kinds of problems are you having?
If the gravity flow gun is not performing as well as your old gun, I'd guess that something is wrong or not adjusted correctly.
I had to get used to the "feel" of the gravity gun. Changing from something you're used to and successful with can be difficult. In my opinion, the old style guns can't match newer gravity spray guns for transfer efficiency and atomization. Using less paint, putting less out into the environment and getting a smoother finish are things worth the hassle of the change.
------------------
Jim "Oldgas" Potts
Your host and moderator