Hubby uses the ProVari with a MAP tank.
I use 4 Buzz's, 2 Infinities, a GGTB with a Terminator, the Megalodon, Prodigy V3.1 with a Terminator, Icon, and EXO 14500 all loaded with MAP tanks.
Terminators make high voltage devices adjustable. Notcigs used to carry them but quit.
All MAP tanks have a different flavor in them. They can be bought at cloudsofvapor when Bigbuyer gets them in.
I left proprietary batteries a long time ago after my first Buzz arrived. I have nothing against them but I love to tune in my juice.
Hahaha, I have got to tell you, as a total newb, everything you just said made me shake my head cuz I have no clue what any of that means.... but, I'm a total computer geek, and I get WAY into anything once I get started, so I'm sure I will understand soon, I just kinda thought it was funny that this is like the 2nd thread I have ever read on the subject and I kinda choked on that mouthful of acronyms.