True to all above. I trained with the 40 size and Its been a great plane. Likewise I changed my prop to the 11, 7 and it is a whole new plane. Pretty quick. The wind can make the 40 a little sketchy on landing but the wire landing gear will take a beating, bend it back and up you go again. As for the evo engine .46, I have never had a better running engine than the evolution. Besides having to wrap the head in the winter time with metal tape to do some ski flying, otherwize its been a great motor.