I just put one in a Dragon Lady .60.....66" span, 872 sq. in wing and it is an absolute joy!!! Plane flies superb and lands like a trainer. On the maiden flight I took it up and tested for any snapping tendencies etc. and there was none. Come out of a loop @ very low speed and give full up and it will simply mush around the sky like my old PT40 would without dropping a wing or "stair stepping"-amazing! The Zenoah is a powerhouse BTW! It has performed like all my other Zenoahs-without a single hiccup!! Good luck with your decision!