Just received my first order from KBV and I am very satisfied. This is my first experience with 70/30 ratio (versus mostly all PG) and I use Volt batteries/Cartos. Does anybody else use 808 batts/cartos or are most using EGO/Provari/Brut force devices? How will my cartos handle the denser liquid over time? Will the cartos last as long or will I go thru more juice being more VG, etc. So far seems to work fine. Any thoughts welcome. Thanks.