[O.B.Left]

It's like comparing apples and oranges if comparing John Erickson's version of hitting to the TGM hitting described here. John teaches a pivot driven swing with active firing hands and an inactive right arm through impact - for John, hitting means the firing of the hands, not the forced straightening of the right elbow. He maintains that Knudson and Hogan swung/hit with active hands to release #2 and #3. From my own tinkering with this type of swing, I agree with him.

Thats different for sure. An "active hand release" of number 2, is in the book by the way, see the Left Wrist Throw. Although perhaps this isnt what you are referring to.

Didnt Knudson coin the expression "passive hands"? Drewit would know for sure. He certainly used the expression. In my lessons years ago with his George's assistant instructor, Norm Moot, it was all about moving the core which was around the chest area, the inside moving the outside, the pivot controlling the hands, balance, the finish position was key, dragging the right foot, shortish backswing.