That's right Harold. And I only do that when the paper wants to rest too close to the surface. Most of the time the paper rests up 1/32 or so and that seems to be about right. The paint wants to be pretty well thinned, and low air pressure is also good. One other thing I do is spray the edges first, aiming straight down or a little toward the center, and then fill in the center areas staying away from the edges. The British used mats to paint the camouflage pattern so you want an indefinite demarcation, but not a real loose one like you would see on a USN tri-color scheme. Here's a 1/48 ICM Mk XVI I did some time back. I did a pretty hard line on the bottom, not sure if that is right on the fuselage except for the cowling, which is usually not blended because the belly part is a separate removable panel.