If you can shoot the paint in a gravity feed, then its not too thick. Check the things Teaser noted. If the paint just seems to be thick around the nosel of the fast blast cap, is the paint stored with the cap covered? I also stick a pin in the small air hole on the cap to cover that (a Bernzy tip
). One or two of my paints seem to get a little thick no matter what I do. For those I take an extra piece of wire, bent with a loop, and run it around the bottom of the paint bottle to get everything good and mixed. A couple of shakes after the cap is back on and its good to go.
Jigman