But to a new vaper it's not that simple and mg does matter. If someone smoked strong cigarettes and moved to vaping they would need high mg, your theory holds true they can get there fix with even 3mg if they spend all day chain vaping but people work and have other things to do and might be relying on short periods of time to have a vape. vaping only 3 or 6mg in that sort of situation would just lead to someone going back to cigarettes.
I don't disagree. I wasn't suggesting you can vape 3mg all day - no, not at all.
I was trying to say the difference between 10.5mg and 12mg is nothing to worry about.
I would estimate that 12mg (or 10.5mg) in a modern device is as good (if not better) than 18mg in something from 2012.
Clearly, 3mg or 6mg isn't sensible for the OP. 12mg should do it at 14 watts or something. He ought to be able to get that (12mg) buying new bottles of 18mg and if the truth is it comes out at 10.5mg then, yes... puff a little more.