Wait until you get to 0mg nicotine, sweet juices get sweeter, and if you use a high VG mix there is no coughing. Nicotine has a pepper taste to it, I know this because when I get VG on my fingers I lick it off its very sweet, normally I would not do this with my VG nic base, but accidently did it once. tasted like a mouthful of black pepper. Last time I do that. That was about 1 drop of 100mg base, so only about 5mg nic, nowhere near a fatal dose, but sure tasted bad.