MARTINSR--
I'm using a Sharpe Platinum 7.5 cfm with a 1.5 tip. I can see from your reply that I have been over-reducing it by using a 50% reduction. And the supplier recommended a 66% reduction, which I never did use. I'll compromise next time and try 33%.
By the way, the advice you gave me about upping the air pressure to my gun certainly gave me much improved results when I shot the cab yesterday. I'll have a lot less color sanding to do.
