I started at 18mg in my protanks/evods. When I started using drippers I quickly dropped to 6mg. I probably could have gone to 12 first, and probably should have, being that I experienced mild nicotine withdrawal (sleepiness/irritability). My advice
buy a bottle of 12 and 18 mix em' together and then drop down to 6. Easier than going from 18 - 12 -6 by eliminating a step, or just go down to 12, either way I wouldn't go straight to 6 because that might make you feel kinda crappy. just my
