I have not been pleased with the tank in the flavor dept. I get pleanty of vape but for some reason no flavor even with the stronger juices. I did a test with a tank that has been tricked out so to speak, and still not satisified. I am not a picky vaper by no means but. I have version 1 and 2. Pushed the wick down, primed til I am dizzy. Next will be to pull out the whole wick and try that mod. I pulled out one of my older cartomizers and wow, big vape and tons of flavor. I am glad I did not toss them. I have not given up on these yet, and belive it to be a good system on the surface but something is just not right. I will figure it out or just go back to the cartos. I was happy with them so all is not lost. In theory the tank is great, just got to get it to deliver on the flavor. Seems easy enough.... right?