[aab1991]

I know.. I have sanded entire car way back in the days.In my case,I think I nailed it at 30 psi and visc. at 24 sec. Try to find that cup, it eliminates all guesswork.Once you get the ## right, all you have to do is just fill and spray.

I used to lacquer finishes on vehicles as well. ( Iam dating myself) I find now doing cabinet work with Deft lacquer the first couple of coats I spray between 10 and 12 viscosity. Balance of the finish is done between 15 and 18 with 40 lbs pressure at the gun. The viscosity cup I use is a Zahn cup. This keeps polishing time to a minimum. 
Gary