I recall a time when I was going through just 1.6ml a day on the higher nicotine liquids, switching to lower nicotine changed that whole dynamic.
I use 6mg/ml liquids at the moment and plan to step down to 3mg/ml sometime soon, no real rush but it is coming.
I think with this step I may not increase my use in terms of ml/day, I think I'm over the addiction part. I haven't had a serious craving for a smoke in a while, for me that's a big aspect of vaping, regain control of my vices rather than allow them to control me.
Maurice