You can. I’ve been known to vape 10mg/ml DL for example. 12mg/ml is not terribly unusual using unprotonated nic. It’s mostly a question of coughing more than anything else.Oh, one last question, btw. I read that 6mg is the highest nicotine strength reccomended for sub-ohm e-cigarettes. Is that accurate, or I can use higher nicotine strength?
There’s a quasi rule-of-thumb that MTL uses about twice the the strength of DL. It’s very dependent on vaping style and individual though. vape what you like.