I love my purple Buzz Pro, but I'm having some issues with my 808 top cap. I have 808 cartos from three different vendors. V4L cool cartos I can get to work with a little tweaking of the post. Ikenvape megas I cannot get to work at all, and 808s from Lightcig USA I cannot get to work at all. None of the cartos seem to be able to connect, they hardly screw on at all, and if I can get them on then I can't them off unless I use brute force, which I don't have much of, lol. They go on so tight, that the top cap unscrews also when I try to get them off. Any ideas? I really, really don't like to use adapters.