I have a cfx-750 in my sprayer. The issue I have is that it stops painting before the sprayer shuts the nozzles off and doesn't start painting until I've gone aways. Sprayer booms turn off and on when they're supposed to it just doesn't paint exactly like the booms are spraying. I've changed it so it paints right but then the sprayer doesn't turn off and on when it's supposed to. What am I doing wrong?