Oops, I may have taken a wrong turn somewhere in the Fog.
If I'm using a 12-1-0 Hitting pattern, but switched the Address Position to 10-9-B (Fix), would my Shoulder Turn remain 10-13-A Standard? What are my options if I'm trying to maintain a 10-7-A Zero Shift?
The Standard Shoulder Turn (10-13-A) is a Compatible Variation (Chapter 13) with the Impact Address Position (10-9-B). So, there is no reason to change this Component Variation. Unless, of course, you want to.
However, be aware that the Impact Address position does have its limitations. As a result, Impact condition should never be the Address Position "except for special purposes" (7-9). The Short Shots, for example. Remember, in the Impact Address Position, the entire Machine is set in its Impact condition, not just the Hands and Club. That includes the Body.
So, when you are set with your Hips that far to the Left (Hip Slide parallel to the Delivery Line 7-12) and turned (7-14), you've got some work to do in Start Up! Namely, in your Full Strokes, you've got to get that Lower Body -- which has been deliberately positioned as Leading the Hands and Club into their Impact Location -- must now be turned 'out of the way,' through the "fluid position between the weight shifting" (7-9), to where it is once again Leading the Power Package Components. But this time, into the Backstroke! This sequencing of the Pivot Components (7-12) establishes the Pivot Lag and Drag, the 'gear train' effect described in 6-C-0.
A personal illustration: At address, Larry Nelson -- "Hogan with a smile" -- has always set up with his Hands in their Impact Location and Alignments. Years ago, I asked him why he didn't set his Body up the same way.
"I could, I guess..."
And then, as he considered the question, he shifted his entire Machine into its Impact Condition, a shockingly big move for Larry. Talk about your basic Cleared Right Hip!
"But that's a lot of trouble, and it's a lot of work to get back."
The question now answered in his own mind, he concluded, "It's not necessary."