I do both.
Prefer mechs. They just work.
After spending money on several VV/VW devices and having them all crap out on me except the Provari, I am out.
My very first mech still works as well as the day it came out of the box.
An 18650 works 9 hours easy when topped with a genisis wrapped at one ohm, and blows a big enough cloud for the kewl kids at the shop to ask me what I am vaping.
If it gets run over or dropped, I can pick it up and keep vaping, as I run metal tanks as well.
I think that half the attraction to reg boxes is that you can throw any old coil on there with any old wad of cotton and turn it up untill it chucks a cloud. Easy peasy for the plug n play crowd.
Its harder to get a mech to work well at 100 watts
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Man, I was starting to believe that in the couple weeks I been back here that I was the only person to still feel this way lol