Ok so i got the new protank 4 and so far Ive just used the pre-made SSOCC and I like it but I would really like to try the pro rba but I want to use silica instead of cotton. There are tons of videos showing how to wick the pro RBA with cotton but I cant find 1 video showing how to wick it with silica. Can someone please help me? You can use silica with it right? Ive always just used the pre-built coils but I want to learn how to wrap my own. I bought the coil master but thats only for cotton right or wrong??? PLEASE SOMEONE HELP ME!!! Oh yea i would like to make a dual coil and my prefered ohm is 1.5ohm because I like mouth to lung vaping. HELP!!!!!!!!!