Well I have been a micro coil with cotton user for about a month now. Today I drove up to Sebring to spend the day with family and then I'm headed back to Miami in the morning. I brought extra batteries and an extra mod, and more juice than I would possibly need. Go figure that my cotton wick took a dump on me even though it was a couple days old. I think I put a little too much and it choked. Now you might be asking how it saved my day. Well I asked my aunt if I could bum a cotton ball from her...BOOM...new wick!!!! All is good in vapeland!!! This would not have been possible if I had to bum silica or SS mesh!!