Now, a Rotated Shoulder Turn Backstroke can be replaced by an On Plane Shoulder Turn Downstroke (complete with Hip Slide, Weight Shift, Axis Tilt and Line Delivery Path). But then, it is no longer a Rotated Shoulder Turn.
Nice observation ......One can have a certain style in the backstroke ...yet another "correcting" motion on the downstroke...Isn't that just awesome!!!! Latitude in Instruction!!!!
I personally do not believe Homer would ever advocate rotated shouler turn (or for that matter, rotating) for the average golfer (and I still believe 12-1 and 12-2 were to address the average golfer versus to be the ultimate or uncompensated stroke).
AND....
Snap makes sense entirely to me, given (and no I dont have the book), loading action does match release, plus....snap's timing has to be dead on, else, hook or push, take your pick.
I am with Yoda.
But....that leaves a bigger question unanswered....