lol i just want a better design that doesn't require changing cartomizers or coils often then you could save so much money there that is why i am going to buy a kayfun 3.1 clone at the first of the month so i can build my own coils and do away with this damn tank with the cartomizer. had to change one last night cause it kept leaking at the bottom onto where it screws into my lavatube mod.