I’ve found his presentation very useful and easy to understand. Although it mainly was for commercial peach farmers, backyard gardeners can benefit a great deal from it.
@Olpea - have you seen this video? The info about low temp and damage to peach tree is very timely. I thought peach trees could tolerate colder temp than what he showed. Also, I thought, older trees would be tougher to kill by extreme cold. His sample was the opposite.
Learn a lot including various pruning system.