Lately I've been only vaping with tanks, smileo's, or clearomizers. All of them are 808 threaded. When I screw my clearo's on my omg ad it's hit or miss. A lot of the times the AD won't even fire. Especially with one particular clearomizer. I can't get it to work at all on my ad. I know the posts are making contact, and my clearo's always work with both of my dav's, omg vv, and my stick batteries. Just wondering why they are so finicky with my omg ad? btw, I have no idea what ohms my clearos are. I've just never had a problem with them until I got my ad. Anyone have a clue? I sure don't.