I mixed my own liquid so I was able to go down to 4, 3, 2, 1, then 0.75, 0.5, down to like 0.25 and lower I think

I was such a fiend that lowering the nicotine meant I would just hit it harder and more often for longer lol but once you get sub 1mg you literally cant hit it fast enough to feel satisfied even if you spend hours chain vaping 🤣

I also had a RDA that put out massive clouds though so that didnt help with moderation lol