I had to go 36mg (or higher) to kill the craving for an analog. Lower than that and I can puff and puff and puff and not get anything out of an ecig. I'm hoping I can ween myself down later, but right now, I have to keep the nicotine level high to get my fix. The analogs do taste awful now, but don't let that fool you: two or three analogs later, you won't even care...again.