Can I ask some stupid questions? Perhaps you may have answered them before. You probably have, however you may like to give us a timely reminder.
This from your article on the "The Power Clean".
"I don’t like the traditional high-bar, or Olympic, squat specifically because the more vertical back angle produced by the higher bar position opens the hip angle and reduces the contribution of the posterior chain muscles to the movement."
Why don't they change it? Even though it is not contested and used as an assistance lift, why not take advantage of the low bar position? Or is it a question about mobility verses maximum load capability?
Thanks for the article, by the way when you were doing your half squats I was running around the squash court chasing that little black ball, I was good at it, but like your half squats squash did not do my knees much good.