To add,
A really up-to-date powerful box mod with a subohm tank requires a certain type of inhale. We call it 'direct to lung'. Not all people can use these. I would have failed, as they are wayyy too strong for me. I vaped at under 10w even by the end of year one.
The inhale on a cig-a-like is mouth to lung*, like a cigarette (usually).