A guy in our club has a U-Can-Do 60 and he let me fly it. I took off and the first words out of my mouth were "Hoe-Lee-SH**!" He had it set with extreme throws and neutral, if not tail heavy, balance. I have a sport plane that does 10 ft loops at full throw on half throttle. This thing was worlds more sensitive. We finished that flight at about 1/3 throttle and low rates.
I got it back down (miraculously) and handed him his transmitter and told him he was "knuckin futz" as he and his peanut gallery were laughing their heads off.
Nice plane, but I don't enjoy a model that sensitive. I'm already married.
C.G. and control throw. And, to some extent, shape. Having tapered elevators puts more of the area in the prop stream for high alpha (3-D) maneuvers.