Just received my tank carto from Digital Ciggz. I am amazingly impressed! There was a bit of a plastic after-taste at first, but after a few break-in puffs it went away. The instructions say it works best with 50/50 vg/pg, which I have in right now. Has anyone tried it with 80/20 or other mixes? I also like that I can see how much liquid is left. This will be great for my road trips to So. Calif.