My issue with carto tanks is how I vape. I take huge 15second multi pull lungfulls. This heats up the carto, which transfers the heat to the liquid in the tank, which expands. Guess what happens when the liquid in the tank goes under pressure? It floods the carto, then leaks all over the place.
If I took 3 second hits, every 10 minutes, this problem would not exist.

As others have said cartos and attys both serve there purpose i have been moving along i believe vary fast in the vaping world for just about a month in a half i went from dripping on a single atty for 3 days got a tank and punched cartos for the remainder of the month witch i still go back too once and a while and for the last 2 weeks i've dipped extensively and pleasurably into the DID (clone) Genesis rebuldible atomizer world and glad i DID never going back to analogs/smokes true tast and from what i have read seams that the real DID is even better then this and if its as much as a difference in change from cartos to rebuildibles I think I might scream from the roof tops with flavor YELPS!!! what up vape on suckaaaazzzzz!!!!!!