While I was having a problem with my RM2 making contact the other night, I had both of my RM2's out on the table disassembled while trying to locate the issue. After screwing out the contact point a tad, I fixed the problem, reassembled the attys and headed for bed content that I was prepared for happy vaping at work yesterday. Not so, it seemed. I had a terrible time keeping my airhole aligned with the coil. Had to leave the atty cover kind of loose to get a decent vape. Last night a light bulb finally went on over my head and I realized I'd unwittingly swapped the atty covers. They're not identical and not interchangable. Silly me. Oh well, lesson learned.