My Wood & Metal or Flexio gun is spitting and not spraying evenly.

This may be due to dried paint blocking the nozzle. Begin by pulling the trigger slightly, so the airflow begins. With just the air coming out, use a small hard object (such as a paint stirrer tool), to scratch at the nozzle opening on the front of the sprayer. The air will help to blow the dried paint out of the way as you loosen it.

Test spray on some cardboard to see if it has worked.