We flew the Super Sportster today and was somewhat disappointed in it. It looks absolutely beautiful in flight, but is a pig in response to the controls. Rolling was agonizingly slow as well as looping, and a climbing, twisting, rolling maneuver was almost impossible. I'm not even sure a bigger engine would make a lot of difference. Some time this week I will increase the throws on the control surfaces and then try again to see how it flies. If there is little or no change, it will become a beautiful decoration.