I really enjoy hearing the sounds of impact on these clips. Even though the student isn't always dead on, you can clearly hear that he is hitting the ball far better than most ever do.
Edz,
I like watching Ben's swing, and listening to impact, too.
But, i noticed during one of the clips, he used his right hand on the club to brush away a ball. He went from a bent right wrist to a completely flat right wrist, and hit the ball very lightly. However, the sound of the "impact" was still of "high quality."
So, I think that it was mainly the audio system which was creating that great sounding impact that we heard on the clips.