Hey I'd like everyone's personal opinions on their favourite tank system/cartotanks. I've tried ce4's meh, ce3's awful, esco e2 leaky but great flavour, ce4 cc worked well but leaky. I'm just wondering if there is something out there that i just haven't come across. Btw my favourite thing to use is a kanger horizontal cartomizer because all my tanks and high tech looking gizmos have stopped working for the most part. Thanks in advance I would love to know what you're all using.