I live in MN. The land of bitter freezing cold, heat and humidty, and everything in between. My best friend has a ton of health issues and seems to think my vaping makes her allergies worse (I don't think this is true, but I love her, so am trying to respect her) so when we hang out I'll have to step outside to vape. I use carto tanks like a champ, as well as Aro clearos and some kanger basic clearos (still haven't tried the aerotank yet but I hope to soon) but I'm wondering what set up seems to be the least "leak proof" when going in and out from different temperature environments? I may have to just use a basic carto on one of my vision spinners, but that's annoying to keep refilling!