I've had my ultra with RES for a little bit under a week, and I can say, without a doubt, its the best pv I own (with one slight hitch). The form factor is very, very, very cool. It's one of the few pvs that I own that people are impressed by. For function, it works every time. No dry hits, just thick, delicous, clouds of vapor. But the hitch is that when my hands get sweaty, I can't get the button to fire. Now this is not a major issue, but one I would to have a solution for it. Any thoughts?