I've been using microcoils with cotton for a couple months now with great success. Yesterday I decided to try for lower ohms, so i setup a 10/9 wrap of twisted 30 gauge kanthal with a 5/64 inner diameter (1.4 ohms) with boiled organic cotton ball as a wick. No matter how much cotton I put in it (or how little), I keep getting a strong cotton taste. On every vape, after I stop firing the coil, my coil "sizzles" for about 3-4 seconds (which I've come to learn means I've got a wicking problem). It seems that the coil is staying too hot long after I stop vaping. Has anyone had any luck with a similar setup, that could shine some light and help me out?... 
