Then I guess we have reached an impasse. Here is what we know.
1) Swings such as Brantley's in Post 63 are a fair representation of your beliefs.
2) Swings such as Brantley's in Post 63 are a fair representation of my beliefs.
3) There is no common ground between the two.
I guess I see 2 different movement patten models that both work. I don't think you would see any disagreements if the 2 pivot pattern matched video of the greats..