I'm no expert but I do maiden planes for people at the field and while "flying like a kite" is hard to understand I may know what you mean (sort of). Anyway, I was maidening a plane for a guy and it had incredible pitch sensitivity but only in up, it was very sluggish down. The plane just wanted to climb and climb and needed almost full down trim for straight and level. After we got it down, I noticed the the top of the windshield was sticking over the seat for the front of the wing. this meant the front of the wing was not sitting on the wing saddle but rather the top of the windshield increasing the incidence by a ton. we fixed it and the plane tirmmed out and flew perfectly. That was almost as tough as a maiden where there was a gyro in the plane and the owner did not tell me. It was reversed for all directions. My hands were shaking after the landing.