Jeff, how'd you get that video up in Chinese? Great flying! There's no way I would bet that you just started flying planes. I would say things like, " The sky's the limit" but you gone far past that. Geese man... your getting hovering and harriers without problems. Does your batt sit over the wing or out in front. With the lighter batt sitting in front of the wing and less of a wing load, your moving the CG back with make hovering more easy but regular forward flight less precise and less stable but landings will have the nose up. Looks like your having a ball[8D] You are now a 3D pilot[8D] That's something I've been working on for years
God Bless Ya Jeff,
Jay