I used to follow trends, now I just follow cows. Cows and trends are a little alike. When one goes they all want to go, when one leaves she wants to return to the herd, or return to mean so to speak.
My original corral design had me pushing cows up to the opening of the squeeze / loading chute alleyway. This did not work so well as they were always trying to turn back where they came from. By implementing the Bud Williams design you use that mentality to your advantage.
So with a few minor modifications we have "The Bud Box".