I've been experimenting, too, with cc. At first I was making a coil with a 5/64 drill bit, stuffing the coil and laying the wicks along the ledge above the wick channels as I did with the cotton in the shape of an L. All seemed fine, but I then made a larger coil (around 2.5mm) so that it would be easier to thread the cc through it. The cc was so thick, though, that I couldn't position it in the form of an L along the ledge, so I just cut it so that the ends were just above the channels on the ledge. Well, that didn't work. I got dry hit after dry hit. Now, I've gone back to the smaller coil and the L-shaped wicks, but I'm using more cc than I previously did with cotton because it shrinks instead of expands. No dry hits now. I'm not sure what was causing the dry hits before. Was it the larger diameter of the coil, or the extra cc? Your thoughts would be appreciated. I should have said that this was on a Kayfun Lite+.