All good stuff. Obviously you need to concentrate on one set of data at a time to establish the correct control responses. Don't forget to consider the effect of various engine power and propeller pitch settings once you have your basic data established. For initial analysis, assuming the engines were developing full power at lift off would be reasonable, but changes to engine power settings may have been made as the bank developed. This would change the airflow and therefore the effectiveness of the flight control surfaces on the wings and tail. If you don't get reasonable results from your initial simulations, this may prove to be the cause of the problem.