I've posted in this thread before, and I still vape about a ml a day. I've done some more math stuff, and this may or may not be close or right. The atty in my vaper might have between between 30 and 60 percent efficiency processing/delivering the nicotine in the liquid combo I come up with. Sometimes, but not often, I vape the 24mg/ml base just as it is, or it's combined with 2 different flavors. So 60% of 24 is about 14 1/4, if I flavor the base the resulting nic level is about 18, and 60% of that is about 11. This dialog comes out of my mouth pretty easily, and I hope when someone asks me "What nic level do use?" that when I say it it's pretty easily understood. Perhaps I just don't word things good enough, but every response I've gotten so far has been along the lines of, "Man, that's a lot of chemistry." That kind of response baffles me, and I've gotten that kind of response from vapers/smokers and non-vapers/non-smokers. I'd expect a response like that from a non-vaper/non-smoker or even a smoker only, but..
Now to make some community member's jaws drop, sometimes I vape a bit LESS than a ml a day!