Hi all, I've been using a REO mini for about a month or so with some 306 1.5 ohm cisco atomizers and have been very happy with it. I bought some new cisco 306 atomizers from the same vendor, some 1.8 and some 1.5 and *none* of them will fit on my mini. The threads seem too big and they won't screw down far enough to be able to fire them. Is anyone else having similar issues? Is there anything I can do?