Once I figured out NOT to have two huge .5mm ribbon coils (3 ohms each) to make a 1.5 ohm head in my V9 it became much less power hungry. I don't know why, I'm using the same 3 ohm coils for the same 1.5 ohm head, just smaller 32ga wire. But now instead of 10w-12w and a long time to heat up it plugs along at 5w-6w just like any 1.X ohm single coil I use.
I understand heating up the mass of ribbon wire will take longer but what I don't understand is how the 32ga dual can be so different than the ribbon and so like a single as far as wattage setting goes.
Because watts don't matter, wire temperature does. Thicker wire requires more current through it to heat up than thinner wire.