I flew my 40-size Twist again today. The engine is a Saito .82 and I originally had a 13x4W prop fitted. But today I tried a 14x4W - and it's just perfect! Vertical is truly unlimited, and it all sounds so effortless too!

In accordance with earlier advice from this thread I set the balance point at 5-inches. This produced great take-off and landings and a nice balanced feel during flight. Walls, knife-edge, spins, etc are all good, and the blender is really awesome. It also does a neat inverted flat spin too, but it won't flat spin right side up at all. I know that moving the balance back a little will probably fix the flat-spin problem, but can anyone tell me why it will flat spin inverted but refuses to do so right side up?

Tony