How often is the construction of the airframe the main cause of problems? I hear a lot about wing incidence but have never measured for it. Do I have as much to worry about with an arf? I mean after all...I just glued the wings together. There wasn't much room for adjustment (like none). I m also in the process of an HU-16 kit, but there wasn't any numbers for the horizontal stab. I just "eyeballed it". I mean, if the cg's are with in the proper range, it should fly, right? i know, i know, I ve seen a lot of crashes. I just hate the feeling of all that money sitting idleing at the end of the run way for the first time.