Surely there are more of you out there...
??
I think maybe there are two problems, Mike.
First, and possibly foremost, users of pivot-based systems, and especially of Stan Shuffett's version, have gotten quite wary about answering such questions when they don't know how the answers are going to be used (JoeyA's reply reflects this).
Second, the question isn't well-worded with respect to Shuffett's methods, ProOne in particular. ProOne has no pivoting of the cue, not even the "air pivot" that is referred to in some other peoples' systems. The moral equivalent (sort of) of a pivot is handled by a shift in the eyes' focus point. Even with the "basic CTE" portion of Stan's system, where there is an explicit pivot, it's not clear to me that its function in Stan's system is the same as in other pivot-based systems. The difference may be subtle, and indeed it may at bottom be purely semantical, but there does seem to me to be a difference.
Now that I think about it, there may be another problem with the question: the term "final shot line". It's unclear to me what that means, especially in the context of Stan's systems.
Also scottjen26 noted a possible problem: the right answer for Stan's basic CTE and ProOne systems might well be "bridge placement and perception of the final shot line occur simultaneously". That isn't a choice, and if I used either, I'd be inclined to not answer the question rather than answer it in a way that would be misunderstood (particularly in light of 1 above

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