I have just bought a kayfun 3. While looking through the forum on here I found a tutorial by Romelee here, http://www.e-cigarette-forum.com/forum/tutorials/503153-kayfun-3-1-microcoil-cotton-guide.html . Can anyone tell me why cotton wool seems to be preferred over wick for building these?Also, is it just normal shop bought cotton wool being used? Many thanks in advance for your help 
