I guess now is when we would need to define a "sport flyer" airplane then. I mean, these guys the 3 lbs airplane and 5 lbs thrust. Do they come to the field just to go up for a couple laps, loops, rolls, maybe a spin or an inverted pass? or do they use that thrust to hover, etc? To me, the former is the definition of a sport flyer, and the latter would push them into the 3D category. Or are they flying 3D for sport ?