The provari mini is on my list, but I'm unsure screwing a tank to the top will be durable enough.
I know you decided on the Provari, but to set your mind at ease………a few days after I got mine, my girlfriend knocked mine off a table. The tank got cracked, and it sheared some of the threads off of the cartomizer that was in it, but the Provari doesn't even show cosmetic damage. She did something similar to my Vision Spinner a week or so before I got it, and the battery's been flaky ever since.
Oh god zapped. I couldn't have explained things better and the add 2 or x2 for dual coils is a great recommendation. And your recommendation for using CARTOMIZERS instead of vivi novas is good too haha. I just found that out for myself. Vivi Novas really aren't all that great honestly. They look fantastic and its nice to have a couple around in case you run out of cartomizers. They are nice to have because you can rebuild them if your going through tough times and you can't afford a new carto.. But wow, I was really surprised to find out that the vivi novas just DON'T perform well when the juice level in the tank is below 3 quarters filled honestly.
Yeah…that doesn't really match my experience. Different notes in the flavor do come out, but it's not like it's a "one's good, the other's bad" difference for me. If you clean the VNs well enough to keep them working, they can
easily outlast the 2 or so cartomizers that you'd use in the same amount of time, and you can change their flavors easily. And juice level has nothing to do with their performance for me.
Conversely, someone recommended smoktech cartomizers. Never had good luck with them. Like……the good ones would last for 3-5 tanks worth of juice. The bad ones wouldn't make it thorugh the first one. I've never had a boge or a VN that performed that badly, and they're very much on my "do not buy under any circumstances" list.