Your theory is interesting, but very academic. You are assessing hip angle to power output with two variables... saddle for/aft with torso unsupported. This study is a good start. I recommend adding another variable "seat height" to fore/aft torso unsupported. Then add another variable seat angle to seat height to for/aft torso unsupported. Then add another variable cleat position to seat angle, seat height, for/aft, torso unsupported... and so the process goes on. Then look at road and aero bars with these variables. Then start looking at the athlete regarding... ROM, core stability, muscle asymmetries, pelvic malalignment, etc. You will be on your way to becoming a bike fitter. But if you are working towards a mechanical engineering degree you can easily make more money than most fitters:)