I used to use 19mm IBTanked caps and XL tubes with SmokTech cartomizers - they looked great on my Provari. I've been getting in to mechs, so I've moved to 22mm
tanks and I've moved from cartomizers to submersible rebuildable atomizers like the Killer, Terminator, and the Diver (my favorite). I don't take my mechs out of the house, so I usually bring a kicked Bolt or my Provari with me to work and such. The 22mm tanks don't look as nice on the Provari, but that's fine with me - it's my go to, no hassle, and dependable PV. I'd like to get a Hippo to better fit my 22mm tanks, but I'd need it in chrome to match my Provari and I don't believe they make them (certainly not new since Provape no longer makes polished chrome Provaris). Aside from my Kicks, my Provari is the only variable anything device that I have and I really have no interest in any other.