Anybody seem to have a loose top cap (the part with the air slots, not really the very top cap) with the Troll RDA? Mine seems kinda loose and its annoying because you can misalign the air flow slots if you aren't careful. Plus, just to keep it in your pocket and what not, makes it annoying. My Doge is really tight around the deck, or at least tight enough. They do give some extra O-rings, maybe I should try those? Its hard to get the original suckers off though, I'm sure with a small toothpick or something I can do it. Just curious if anybody else noticed that or had the same problem?