I have a good quality hvlp top loading paint gun that I am having problems with. It seems that the paint isn't flowing out the tip smoothly. It kind of pulsates out. So as you move the gun side to side it tends to leave vertical bands where the paint was not flowing out. Not getting a constant stream of paint. I always completely dismantle the gun after spraying and thoroughly cleaned it out. I thought that maybe the little filter below the reservoir might not be flowing properly so I completely removed it and sprayed thinner thru it. Still pulsates. The vent on the reservoir can is not plugged either. I can't for the life of me figure out why the paint is pulsating out the gun. The first time I used it I don't remember having this problem. Heeeelp!!