Yeah it works pretty well. MyFreedomSmokes charges the same for everything from 0mg to 24mg, only bumping up the price when you go to 36mg. So, I make regular orders of the 6mg in 60ml bottles to take full advantage of volume savings, and just get a 30ml of the 24mg every once in a while, since I don't go thru it fast at all. It works very well.
Andria
I just got my TOBH / Nemsis and doing 6mg and it feels like 12 because more vapor. I'll have to either 3mg it for the atty or work with 6 in both. The 6 in the TOBH feels like 12 from more vapor burning more juice sucked in. But in a kayfun with so much less air draw and vapor compared, 12 feels like 12ish depending on how much you pull in ofcourse.