I have been rebuilding , well rewicking ( replacing coils when necessary ) my T3S (2 - smaller one for morning vape , larger one for rest of the day vape ) with 3mm Silica Wick with good results . Recently I decided to try cotton wicks . My first attempt didn't go to well due to cotton taste but after a bit of reading I started boiling the cotton ( hypoallergenic store brand ) and that helped . I was happily surprised by the TH , vapor production and clearer taste cotton produces , especially after 1ml or so is run through the cotton wick . I do notice dryer mouth almost instantly though . I even changed the wick on a tank ( halfway through ) back to silica just to be sure it was the cotton wick . Am I using the wrong cotton or maybe not using the same wick long enough ? Could it just be that the cotton wick produces more vapor and I need to adjust my draw time/length a bit ? Anyone else notice similar issues ? What advantages / disadvantages have you found with varying wicks ?