Nice job saving the model. Did you assemble the plane yourself or did you get it used? I am not trying to be critical but it apears that the engine may be set a little high over the planes natural thrust line. If you can get to the directions for the plane and see if the engine is mounted properly it could make a huge difference in the flight performance. But if it is where it is suposed to be, by all means leave it alone. Best of luck on the next flight.