He and Jimmy should just morph into one superhuman.

GM is not god. He is a very well respected man/trainer/rider who has spent 3 times my lifetime in the hunter/jumper world. However, his knowledge of correct riding, training, and horsemanship could benefit anyone involved in horses, hunter/jumper or not. His style is not exclusive to his own sport, like so many riders/trainers. Its simply correct. Which is why I appreciate him.