It has been my experence that it is more the plane than the power source that makes a good 3D plane. I'm just starting to build a AJ Slick 89" with electric power. It's going to have about 4000 watts of power so I'm sure it will perform as well as the same plane with a gas engine. I saw a big electric and just had to have one. It's like magic. All that performance in near silence was just amazing. That big plane with just the whistling sound of the wind, not better than the nice purr of an engine, just so different.