Hempy, the dual parallel is a single coil, but you run two strands side by side as you wrap the coil. Start with wire that has a higher ohm rating because having the strands parallel actually do wonky stuff with your final ohm reading. It's not like splitting the load between a normal dual coil setup. It's pretty much for sub-ohm cloud chasing. I've tried it once, lots of vapor not so good flavor, and huge battery hog.

