So I've had my eGo-C for a couple of weeks now and it has been AWESOME. I had absolutely no issues with it up until tonight. First off, I am a complete newb when it comes to vaping, so I may be doing something wrong, but here is what happened. I have been trying a sample pack of juices and have been using the same tank with the soft cap and it has been great. After trying about 8 flavors, about a tank each (using same tank), I filled up a new flavor and took a few drags and WOW horribly disgusting burnt taste. Immediately, I suspected the atomizer, so I swapped it out with a brand new one and STILL the exact same terrible taste. I wasn't sure what else to try, so I finally swapped out tanks and just used the hard cap (had to puncture a little first with a knife so the atty head would fully puncture right, what a pain! Anyway, after switching tanks on the brand new atomizer, NO MORE BURNT TASTE! - I have no idea what would have caused this, not sure if the soft cap was not getting the juice to the atty right? If anyone knows what this could be, a little help would be great - Thanks! OH and one more thing, I was taking the cap off completely and filling the tank, then putting it back on, I'm not sure if that was maybe creating a vacuum in the tank keeping it from feeding right or not, but just a thought. With the new tank, I just stuck the dripped in through the hole in the cap and filled it that way.