"Indeed, genetic alone is not the determining factor for success or failure.
But, rather it is the mind of the horse that is in complete control of the will, and thus performance, on and off the racetrack.
This makes it very clear that while physical ability is important, the mental capacity of the equine controls the physical output of the athlete. "
-Kerry M Thomas
This guy is fantastic, talked to him at length earlier this week and he really has a handle on an area of performance that NO ONE actively trains to improve. Please check it out.