I am a three month convert, but I love to tinker and experiment. When I first heard of replacing the coil wicks (Kanger coils) I had to give it a shot. After becoming a Wick-Freak and buying and trying all of the standard stuff and up to and including Hemp wicks, I have settled on Good old Cotton. For about a dollar, you can get a bag of Medical grade sterile cotton balls. They are spun lightly and easily roll into the wick one might desire. When replacing the standard wick with cotton, be patient. It takes a couple of minutes for the juice to saturate the wick. Start off with your lowest voltage setting for the first maybey ten hits and don't expect a perfect taste. Then, the magic begins. The draw is free and the flavor and vape is outrageous. The Cotton will not last as long as the Silica wicks. I can now re-wick easily in the field so to speak. After what seems to average a day or two, the cotton will expand (The draw will tighten up) and or start to burn and then you need to dry burn and start over. I know I have assumed a certain level of working with the coils here so if you are Brand new to this, I can send more detail or a video. Try the cotton,,,,Amazing. P.S , use less and smaller than you think,,,,it expands when wet.