Do a panel at a time but be sure to flick your wrists in the direction you are moving at the end of each stroke and release the fluid trigger at the end keeping the air flowing through the nozzle.(First part of your trigger is air, second is fluid) Move your overlap and work in the opposite direction on the panel in the same steps as above. This will keep the materials from building up on the ends of the panels causing runs in most instances.
Really hard to explain. Wish you were closer! I would show you.
