I'm thinking that one problem some might have with stepping-down on nicotine is trying to step-down too far, too fast. I have no plans to go lower or stop using nicotine, but I definitely want to get off the WTA, it's so dang expensive. Before the end of the year, I was using 25mg WTA as 10% of my ejuice; starting at the first of this year, I started mixing it as only 9% of the ejuice; next month, I'll go to 8%, and continue to step it down by 1 percentage point each month, until I'm either WTA-free, or I experience cravings; if I get cravings, I'll bump it back up 1 point, and then carry on the next month by stepping down one *half* a percentage point.
The brain wants what it wants, and no matter how much your MIND wants to get free of nicotine, or WTA or whatever, that cuts no ice with the brain. You either have to force it, which means enduring some discomfort, as your brain tries to get you to give it what it needs, or it requires stealth -- doing it so extremely slowly that the brain doesn't really notice. As much as I'd love to stop buying WTA RIGHT NOW, I know that my brain will never go along with that peacefully, and it will make me miserable (as well as everyone around me!) if I try it. So I'm opting for the slow, stealthy reduction. Maybe instead of trying to go from 12mg to 6mg, or even 9mg, try for 10mg, and see if you can be comfy at that level. If so, then next time, try 8mg. Going more slowly that way will condition the brain to accept a lower level without so much discomfort.
Andria