Is there such a thing really as a no nicotine cartridge or liquid? I know they advertise but is there reliable testing? I am asking because the one study the FDA did do I think they found small amounts of nicotine in all the no nicotine cartridges. Eventually I want to decrease the nicotine down to O w/out disturbing the other habits, like the smoke coming out hand to mouth etc. That could very well work for me as I am surprised I could quit regular cigs so easily with these e cigs. I tried a nic lozenge for about a day but that did not work at all. I think the difference is the routine of smoking plus the nicotine. Would be nice if the larger companies did do independent testing of what is in the liquid too for quality control. Maybe that will come.