Single coils are sweet! I tried dual coils and they were just too slow to heat up I mean I wasn't getting good vapor production but the could of been just my mod. On the bright side I love my single coils right now mine is at o.6 ohms and vapor is great flavour is great I love it! Let me k ow any of your ideas so I can try out some different ones I'm crazy about building coils so please tell me your experiences