I started at 24mg, but when I vaped as much as I wanted to, I got headaches and hiccups. Moved quickly to 18, with an occasional 24 in the morning or to calm an analog craving. Just started using 11 at night, hoping it will help me fall asleep a bit easier. For the most part, 18 is good for me, and I currently have no need or desire to drop any farther any faster.
~krash