I've given up on the idea of an all day vape. I keep 4 different Ego's with vivi tanks, 2 with drip tips, and a half dozen different Volts all in a pencil holder so I can just grab different flavors all day long. IF I ever do find an "all day vape", then I'll think about a VV like the Provari as they're too expensive to keep a dozen around and it's a pain to change tanks constantly or drip all day.