Hiya everyone! Im new to e cigs (Only been using them for about a week) But I have a question; I bought cartomizers from cignot, and got them today, The cartos fit on my black crystal LED 510 http://www.electronicstix.com/STARTER-KITS/510-CARTOMIZER-STARTER-KITS-c48/ but not on my white joyetech 510 http://www.ecigbestsave.com/Joye-510-Auto-Kit-p/ka.htm there like puzzle pieces, some fit on one but not on the other (from either set) is everyones like this? is there a piece Im missing? Im kinda aggravated. I bought the cartos for ease of use, but at this point Im ready to trash em :/