I'm curious how it will perform with just 1 coil. These dual coil setups are using too much power for my liking.[/QUOT
You are partially correct. Dual coils with the same rating as a single coil in watts has more heating area than a single coil. Thus creates more vapors and consumes the same amount of power. But, the catch is, since the heating area is more, the wick could withstand more heat since there are more or longer wicks that is why vapers could run them at a much higher temperature (wattage).