Good thing about dual coil design is that you can make a big coil, because of the parallel circuit, the resistance of coil is reduced by half.

Now i have 6 wraps, 29 awg in my kayfun and it gives out 2 ohm. Yeah too much for mech, even with kick.1st coil on kayfun for me... On aqua its gonna be 1 ohm with 2 identical coils :)