No two days are alike in nicotine content. Some days I can vape 26 mg straight from the bottle while dripping, yesterday I was at 16 mg and today I started shaking and had to lower it to about 14 mg. I wonder, do your needs change? I've also tried to make it low and go up, but many times it didn't work. I also kept a 24 mg bottle and atty to get a nic shot whenever I need the extra nic. Do yo fluctuate this much?