I just got my clearomizer and love it so far, but I do have one problem. When the liquid was maybe halfway empty, I noticed I got a few burnt tasting hits. I also noticed the two wicks at the top looked dry... Do these need to stay wet? It seemed like the problem let up if I turned the clearo upside down to get the wicks wet... Also, does anyone know if it is bottom or top feed? Other than that, they're pretty good!