i have the stock 2 flavor wicks, when i clean my head/coil i usually replace the top wicks that kanger sets on top of the coil with cotton. i havent done that yet with this one. the vg/pg ratio i thing is 30/70, but its 16 mg and i did add 10% more straight vg to it because of how thin the juice is and to bring dow the nic to around 12-14mg. theres no flavor loss and it produces a tad more vapor. i diy my own 0nic flavors 100% vg and have no problems so far, then again , ive only used 2.2 ohm coils untill this one. i am by no means a vapevet and still i am learning stuff daily. ive been doing the cotton flavor wick trick for about a week and a half. hoping i cleared the confusion about that, you think i should go ahead and try it out on this head/coil?