I absolutley swear by the new 510 cartomizers. I got so sick of messing with all that stuff, dripping, filling, mods, cleaning attys...serioulsy made me want to smoke again! I first bought an adapter for my 510 batteries so I could use prefilled kr8 cartos and the taste of those just didnt work for me, so I got the big 510 blank cartos and used the condom method to fill them with liquid that I know I enjoy and BAM, I've found hassle free and consistant vaping!