Before dry burning anything, what type of wire are you using, Kanthal, Ni80, SS? I doubt you're in temp control, but you never know. Avoid dry burning Ti and Ni200. I would have to rewick and clean the coil with 60 ml of juice through it (maybe even a bit less). With dry burning the coil I can get 3 months out of a SS coil. But as I vape only about 7 ml of juice a day, it's not a big deal to deal with. For you, yeah, extra tanks to spread the load out is a good idea.