In the Cabrera clip I see his core pulling a dead back leg forward and then landing back into it. When you say the rear leg is the driver is that we’re actively pushing off of it? It controls our move forward? We drive the back knee forward and down as a step in the kinetic chain of the swing?Because some movement patterns don't use both legs for leverage They use the rear leg as the driver while the front leg catches the swing.
The Kinsler clip I may be ignorant but I don’t see one legged. I’d love to hear your interpretation. For me I see the rear leg control my forward timing move as I land in the range of 60-40 50-50 weight shift. As I swing into my front leg my core pulls my back foot I rotate around my spine and my front leg extends.