For the last couple of years I've been using 16mg eliquid then a few months ago I cut it back to 8mg then about 9 days ago I cut back to 4 mg liquid . I found going from 16 to 8 took some working at but the step down from 8 to 4 has been a breeze , a bit nervous for the first 2 days but since then it's been plain sailing . I vape about 20 ml a day on a sub ohm setup. Gonna give it a couple of months then try going to 2mg . If I cant manage 2 then I'll stick at 4mg . I'm partly mixing my own juice and a 10 ml bottle is costing me about 36p so this is working out to be very cheap indeed. Have a nice day and vape on.