To be fair, this segment in the lesson was about hands. The unhinging of the wrist at impact was something my daughter lacked.What I think is that the demonstration misses the importance of the rear upper arm and the preparation to throw ... along with the timing of the preparation to throw. Notice how he demos what he believes he wants to happen ... the upper arm and rear elbow basically remain fixated against his side, and he is "all hands". Not what I'm looking for personally. I do like his point about unhinging into impact ... there is certainly a lot of power in that.