Not only is there no seat of pants but you are faced with the controls being reveresed every time the plane is flying toward you.
Real plane experience helps but not as much as you would expect.
The small P-51 you have will be a handfull even for an experienced RC pilot but the Hangar 9 PTS is a doable trainer WITH HELP.
It is specifically designed to tame out some of the worst characteristics of most RC warbirds. It is still a bit more difficult than a typical high wing trainer.