After trying every setup possible over the last week, here is the setup that
seems to be working:
juice is 80%pg 20%vg.
Cart has a McDonalds size straw in the bottom half, with 2 Vs notched into the bottom 1/3 of the straw. The top half of the cart is filled with blue foam trimmed very slightly larger than the cart so that it friction fits, but doesn't compress at all.
I've been chain-
vaping on a single cart and atomizer (the one that I had the most trouble with) all day, and it's been keeping up. No leaks at all, not even a drop, and no sign of a burnt or dry taste until the cart is empty. When the cart tastes empty, it actually IS empty. I've been through 4 or 5 fills like this so far.
Hopefully this will help those that are pulling their hair out like I was. If the situation goes south, I will update.