I just sold my Super Sportster .40 ARF last week after having about 50 flights on it. The Plane was an absolute ball to fly. Very Fast, and yet super stable even at slow speeds. I always had mine just a tad heavy to the nose, and inflight handling, and landings were a breeze. I ran a Tower .46 Pro engine with an APC 11x5 Prop. With a 10x6 Prop it was just a tad to fast for my liking, and the landings were a little on the hot side. Once I went with the 11x5APC it slowed the Plane down just a bit, but it really made a big difference on landing speed. I could bring it in slower than alot of Trainers. The Tower Engine on it was always cranky and a bear to keep in tune, but when it was running good, it would really make the Sportster get with the program. When it wasn't running good, and I would have to make a deadstick landing, I was suprised at how well I could glide the Sportster in for a nice clean landing under no power. Definately a Super Plane, and I will probally have another one in the hangar someday.