For me every liquid has a peak best voltage, with a lot of it depending on the PG/VG/Flavoring content, and Atty/Carto that you run. Some taste better at lower voltages some in the mid range and some in the HV Range. 1 voltage for every liquid just doesn't cut it for me, I find that for fruits it is one voltage, tobaccos another, dessert another, bakery another, this is why having a mod like your provari comes in very handy Maureengill, I use 2 of them, a Darwin, and some other VV Mods, I also find a mod with (PWM) makes for a better vape then one that doesn't run on PWM. Lot's of variables come into play for me, that's for sure and if I only could use one voltage I would feel very limited. Vape On ;-)