thanks for the replyI've had the same question, yet:
* When we walk towards any object in space we walk nose on the line, not vision center on the line--we are created to be finders and pointers
* Watch pros--who disobey what I said and stand with a foot forward because they've hit a million shots--except when they face a tough cut next, and do exactly what I said and square to the line
* I have a lot of students whose games have gone way up as I force them to square to the target and pick a target before moving to the stance
* Vision center in the full stance includes a foot forward and therefore, a rotated torso and head--standing square to the line but with your vision center over the line is a parallax view to your completed stance anyway
If you're still not sure, try an entire playing session your way, then an entire session my way--note--be careful to stand perpendicular to the shortest line between the balls, not the rails, ignore the pockets and rails at address. Let me know your findings and I'll help you further if needed.
Thanks.