Quote - I still say the pelvic tilt and s-curve are the most glaring causes for question; they are very much the same. If you halt my animation and step thru during the side view, it is scary how much they line up.
This is compounded by the fact that most full body morphs do not attempt to put this curve in the spine/pelivs of the default, at least to this extreme.

Because most morphs aren't custom copies of real women. To me this shape is not unusual. A lot of women stand this way. V4 base is NOT a typical shape. I would expect custom shapes to look more like each other than like V4.