The only changing variable was the distance from the nozzle to the surface in these patterns. Spraying too close will result in a streaky job. Too far away will give you a blotchy job as material blows into the air and dries, or as droplets fall out of the proper pattern. The shape of the fluid spraying from the gun does not become uniform until about 3 to 4 inches out from the gun. The "sweet spot" for an ideal controlled fan and a uniform coating is from 4 to 6 inches. By 6 to 7 inches, the fan is too spread out and the droplet density is too low, resulting in dry spray, or the droplets merge and enlarge, and start to drop off.