okay, I've only been into this for a few days, but I already have a serious case of mod fever going on here, I've got springs, and foam, and teabags, and poly this that and the other strewn everywhere, amidst bottles and batteries, tweezers and droppers, napkins and sticky fingers 8-o
Anyway, the good news is, I'm happily vaping away right now and have been all day, using the Aqua Clear 50, tapered, and trimmed to a rounded shape fitting the cart not too snug, not too loose, I'm using approx' 2/3 AquaClear and 1/3 polyfill in the top (leakage using all Aquaclear).
Another equally effective way to go, is with the Pin hole all polyfiber cart mod, I'm getting long lasting clouds of tasty vapor with both of them...oh! and btw, this is with an 801 cart.
So, now I have that sorted, I'm ready to move on to getting my juice flavors, mg's, ml's and whatnot straightened out while I'm waiting for the parts to arrive for a 5volt box I'm going to build, and after that, a pass through...... although to be honest, this 801 box mod I got from Cybervex is working flawlessly

Looks like this is turning into a new hobby for me..
Man! what a breakthrough these e-cigs are, I've been smoking a pack a day all of my adult life and now it looks like it's all over!
smonomo.....and I mean it this time!
