I ran into similar issues with the ego-c. The atty's can be finicky IMO. I don't recommend dry burning the atty, that won't help the gunk. Only thing that will is cleaning them. When you clean all the pieces, even if you dry with a paper towel it's best to let the atty sit for 24-48 hours to dry completely. That's prolly why you're getting liquid all over it, although they also do leak alot, i remember always having to wipe it down.
Their biggest problem is that they don't wick the juice to the atty fast enough, which is why you're getting the burnt taste. Many have been in your shoes and eventually switch to cartomizers. The batteries are great, but the atty/tank setup is not. Personally i think you'd be better served using some boge low resistance cartos on the battery. Less problems, less maintenance, and if you get a bad one or it starts gunking up too much, just throw it out.
Hope that helps.