I just spoke to a guy in the vape shop.
He said that there are ways around the 2ml max tank capacity.
There are adapters being sold that combine with smaller coils to increase the capacity of some tanks to 5ml.
To be assembled at home at the user's discretion.
Also noticed that 30ml bottles of e liquid are sold with 0mg and about 15% of the bottle empty. You are given a small bottle of nicotine to add yourself. Didn't know about this as I buy my liquid online.
Interesting.
Went in for coils for my Uwell Crown. No coils