I am in the california bay area so the humidity is low. I do seem to have to fiddle with the air pressure. It is difficult to find a happy medium. I have a gauge on the gun but it did not seem to work at the recommended 25 psi? I had to run a bit higher about 33 psi. Yes, perhaps I need to take it all a part and soak . I been using laquer thinner, is that OK?