I've gone to mostly just dripping because I can't keep the burnt taste away. Just when I think I get a cart to FINALLY wick properly, it either dumps the fluid or gets the burnt taste. I've tried blue foam, pyramid tea bags, fluval foam, scrubbie pads, and even surgical gauze. All in many configurations. No dice yet.
I'm currently trying to make a tank system work. Seems promising so far. I noticed the bottom of the carts fit perfectly inside the tops, so I cut off a bottom and drilled a large hole in it, and put it inside another cart (upside down) with a spring to hold it up, and a PTB membrane at the top to keep the juice from running out. My first test dumped on me, but it worked quite well before that, so I'll try to tinker with it a bit more.
My ego-t gets here monday, so I'll have some other hardware that doesn't work right to complain about soon. Til then I'll keep trying to get my leo to run. What's the alternative? Smoking? I don't think so.