I was down in Mammoth Springs, AR last summer, and there was a guy trying to say, "symmetry" and all he could get out was, "hand me another beer, John." Lucky for me, I have family living on the MO/AR border and I understand what he really meant.
There was a show on the Science Channel, "Understanding Beauty", and in it, they discussed things in nature and things made by people that are "beautiful". I think you're on to something Dennis....the top and bottom being symetrical, plus, I'll bet that the location of the high arc of the shoulder is a specific distance from the top which is beauty that you can calculate and create on purpose (some specified % of total height and related to width) I'll have to watch that tape again. (yes...I still have tapes )
I rely on these scientific approaches because I have no fashion sense and no artistic ability.
~john
"There's nothing wrong with Quiet" ` Jeremiah Johnson