10-2-B Yes, and I agree with the statement that HK mostly referred to 10-2-B.
10-18-A and 10-18-B employ 10-2-B.
10-18-B “… It is restricted to true centrifugal force swings because its reverse rotation during Release-return to the Flat and Vertical Left Wrist-inhibits Clubhead Throwaway.” I think that the word “restricted” should be replaced with “mandatory”. It’s only my opinion.
Then, 7-3 would be completely comprehensible, “For Swinging the Right Forearm should be precisely in-line with-and directly opposed to-the motion of the On Plane Loading Action of the Secondary Lever Assembly (the Clubshaft) and this alignment maintained through impact.” Homer Kelly was a genius and no sentence in the book sums the differences between Hitting and Swinging as eloquently as this.
For the Swinger, this can only occur with 10-18-B. If Swingers continue to use 10-18-A then the concept of Loading the Secondary Lever and how it is completely and dramatically different (in feel and appearance) than Loading the Primary Lever cannot ever be known. You cannot load the Secondary Lever with 10-18-A. That’s what the statement in 7-3 is about and the reason “THE MAGIC OF THE RIGHT FOREARM” is included in 7-3.
Learn this, then Sequenced and Simultaneous Releases are not only understood, but can be executed at will, and perfectly On Plane. Every time.