I just got an atomo clone... it's my second mod, pretty fantastic, I like it more than my nemesis. Works great with my kayfun Lite Plus V2. However, I can not get it to work with my Igo W or my non-version 2 kayfun light Plus. If I understand correctly, I adjust the larger of the two screws on the atomo's two part firing pin to make sure it makes contact with the atomizer (The smaller is to ensure contact with the battery.) But its screwed all the way in and the thing won't fire at all. Am I just out of luck with those atomizers cause they themselves are not adjustable? I can tell by looking that the threading underneath them is not as long as on the Lite Plus v2.