I've reached a point of frustration with the regular cartomizers, and not just generally use them as back up or to test new flavors. Cuttently I've been using CE3s from SI. They are better then regular cartomizers but I periodically get a burnt taste and have been having some issues with leaking. I've also tried nano clearomizers from SI. Initially I thought they were ok but they seem to be really inconsistent with burnt taste and inconsistent draw. If you haven't already gathered, I use 808 batteries. Despite all I keep hearing from veterans, I like my smaller batteries and am trying to stay away from big tank like delivery systems. Is there any other cartomizer/clearomizer I should try?