having a hard time getting this to work. I'm using watco clear gloss lacquer. I mixed about 1oz of lacquer thinner with some keda dye. Then added it to 5oz of lacquer. the preval would just do little spits. lacquer was coming out of the little 'v' air hole in the cap. figured it might be too thick so added progressively more lacquer and kept trying it. got really thin but no love. then figured maybe it wasn't thick enough... so took 1oz of what I had there and added 5oz of straight lacquer to it and still no love. changed the nozzle, no love. changed the input tube, no love. any idea what I'm doing wrong?