I was a diehard mech user until just recently, not any more...a regulated Vape is so much more consistent and obviously allows you to dial in your sweet spot, some juices like a little more power, others less.
There's so many great quality reasonably priced regulated mods available it should be pretty easy to find one you can live with, be warned though...they can be habit forming, I just had numbers 4 & 5 show up this week.
A little late to this party, he's probably got half a dozen by now.