Do you know the correct way to spray an airless gun？

In order to achieve the perfect spraying effect, it is very important to keep the spray gun at a 90 degree Angle at all times during the spraying process, so as to ensure that the entire surface is evenly sprayed.
The distance between nozzle and ****** of spray surface is 25-30cm.
Move the arm at a constant speed and always keep the distance from the spray gun to the spray surface unchanged. Keep the gun parallel to the spray surface. So you have to move your whole arm, not your wrist.
With your arm moving, press the gun trigger. Release the trigger after spraying. The gun should be on the move when the trigger is pressed or released.
The lower spray covers about 30% of the upper spray area to ensure uniform spray.
When spraying enamel or latex paint, spray the surrounding area (sides and corners) first, and then spray the large area in the middle