[O.B.Left]

Well, it's in there, with a Slide hip turn.

That seems weird to me as well. Why employ a Slide Hip Turn (Axis Tilt) and then use the Rotated Shoulder Turn? The Right Shoulder would, given a normal amount of waist bend take the Power Package out, over the Inclined Plane, would it not? You could bend over more at the waist (Jim Hardy etc) but why not just employ the On Plane Shoulder Turn in the Downstroke?

Im like you, I prefer the Standard 10-13-A as taught by Yoda. Flat back and On Plane in the Downstroke. My second choice would be Rotated going back and then On Plane in the Downstroke. Either way given the necessity for sequencing 6-M-1 and staying On Plane, the Right Shoulder takes the bent right arm and the intact, fully loaded, non leaking Power Package down the Inclined Plane. To re engineer this; in order to accomplish this, the right shoulder must be on the Inclined Plane in Startdown which necessitates Axis Tilt, a Hip Slide in transition, ideally done with a delayed Hip Turn which clears a path for the right elbow. Im going around in circles, sorry.

The rotated shoulder turn says to use a shiftless hip turn. And under shiftless hip turn it says "tends toward a soft stroke with emphasis on accuracy. It can produce an on plane downstroke shoulder turn only with the rotated shoulder plane angle." (As defining a turned shoulder plane angle versus transport only?)

Something does not compute. I think shiftless hip turn is not always required with rotated shoulder turn. Only when using it for transport-only as in 10-13-B. Awkward wording. Unclear in both the shoulder turn and the hip turn.
It's in the thread on 7th Edition Changes but hasn't been discussed.

I'd stick with Standard shoulder turn, flat back, on-plane down. TSP angle. 'specially at my age.

In my 6th edition its says that "Downstroke use (of the Rotated Shoulder Turn) is normally confined to the Shiftless Hip Turn". Im thinking that given that Axis Tilt is a fairly advanced technique and designed specifically to get the Right Shoulder closer to the Inclined Plane so it can move down it, a golfer wouldnt normally bother shifting unless he intended to use the On Plane Shoulder Turn. I also think that managing your waist bend so the Rotated Plane is on the Inclined Plane is less than ideal for full shots. Perhaps Homer was alluding to this?

For short shots, putting say, Rotated is the simple way to go, you wouldnt want to Flat back then On Plane when putting! Here, if you wanted to, you could manage your waist bend, upper spine bend etc to get the Rotated Shoulder Turn moving On Plane (Pivot to Hands, Shoulder Stroke). No need to shift the Hips of course. Arc or Angle of Approach for putting vs full shot considerations here too. Hitting the back of the ball instead of the inside quadrant etc.