I got vape mail today that had my sigelei 20w and I also ordered an igo w since I enjoy rebuilding coils. I am building the same coil that I put in my kayfun clone. It is a 1.4-1.5 ohm coil. In the kayfun it works great but in my igo w I am not getting much vapor or flavor and the hit is so rough it makes me cough my head off. The juice I am using is 12mg nicotine in the igo. In the kayfun I'm using 18mg and it is so much smoother. Can someone give me some suggestions to make my igo more enjoyable? Any tips will be great.