I have a friend who had the same issue with his Rizzini clays gun. He struggled with it for a least a year before arriving at a diagnosis. This spring he had it "Eysterized." After his session at Eysters he's turned into a patterning maniac. He also quickly made master class now that his gun shoots straight and he's been tearing up the tournament circuit. In fact, he just kicked our butts and took HOA again yesterday.