I just got my R91 (clone) in today and I followed the OPs design and TruWick (possibly CheetWick lol). But I get a really harsh, almost burning thoat hit off of them. The coil is around 1-1.5mm off the airflow hole. I'm listening to OP going against the 'less is more' cotton idea, but its not bunching up or anything.. Any suggestions for me?
Agree w/ the other poster regarding coil distance from the air hole. It makes a difference for sure.