I have been through a couple of tanks on the kanger mega and IMO, it sucks. I was using the original aerotank and like it, so I got the mega just because it will sit flush on my APV. Once I get about half way through the tank, there is so much juice on the coil that I get little flavor and almost no vapor. I can solve it by letting it sit for a while upside down to dry out the wick, but it's temporary. After taking it apart I see why it doesn't perform as well as the original. The original has a small bowl that the coil goes into-there is a lifted lip (can't figure out how else to describe it) that must keep the juice flow at a better rate. The mega base is flush and flat and all of that juice goes into the coil. I can see that the coil chimney is flooded on the mega when I take the drip tip off and have a look. I'm using the same coils. I might be able to fix it with my own rebuilds and cotton instead of whatever Kanger uses, but I have to wonder-did any of them try this thing before they put it to market?