I don’t even know what the hell that stuff is.
I spent some time with Boo Schexnayder and he said the athlete should feel a big split between the knees during accel and still a big split during top speed but obviously faster. He did mention it all coming from the hips. I personally have to make sure I don’t “pose or stall” in the high leg position when focusing on this cue. It seems to work better for me if I just concentrate on stepping down hard or pumping the arms hard from a tall, upright posture.