My DH and I have the original Reo Woody, several Grands, several Mini, and two new Woodvils. I love them all. DH prefers the Mini because it is so pocket friendly, along with his reading glasses, pen light, and pen, all in one pocket. He carries extra battery or more depending on how long he is going to be away from home.
For instance, today, he left home at 1300 and will be home around 1700. So he only took one extra battery and ((((always))))) a spare atty. When he's gone for 10 hours he'll take a couple or three extra batteries, an extra 3 ml juice bottle, and spare atty. (Neither of us has ever had an atty "blow" away from home or only once at home, but it does happen.) He carries these in little inexpensive 18650 battery cases; two rubberbanded together for long days.
With an IMR high drain 14500 battery in the Reo Mini, you can play around with resistance of atty or carto to get the vape that you want.
I have one brand of high drain batteries that aren't as good as the other. "The other" are AW IMR batteries. I, always send those out of town with DH, as they don't self discharge as fast. DH vapes a lot less than I do. 6ml and four AW IMR 14500s usually get him through three long days out of town, without his having to get the battery charger out.
With me it's a whole different story. I'm a six ml/day girl so the Reo Grand is better for me, out and about.
But usually, I have one Grand, with fresh battery, one Mini, with fresh battery, and one Mini battery for backup. That's easy enough.
And no mess, no tissues, no drip, no bottle changes, no dripping. It's just too easy.
Alice