PERFECT LINEBody Alignment
We can demonstrate that open shoulders aren't detrimental to the putting stroke. On the contrary, the longer the putt, the more they help you to see your target better and maintain the direction of the stroke itself. Standing square isn't necessary as long as the center of gravity of the putting mechanism is neutral.
In a conventional square-on stroke the putting mechanism hangs from both shoulders placing two equal forces in opposition. Instead we suspend the putting mechanism mainly from the right shoulder and the result, from a neutral set up, is greater control of the putter toward a more visible target.
On the Boomerang we studied shoulder alignment at its extremes. Facing away from the target it reduced vision completely, a bit like Nick Faldo, while turning to face the target resembled Sam Snead's side-saddle.
Side-saddle is under rated because in other rolling and sliding disciplines like curling and lawn bowls it's much easier to see the target if you stand facing it. When you use both eyes it's much easier to judge distance, control the method of propulsion and the object itself.