I went back and looked at 4-44, and there it is in black and white; the pivot foot is not established until both feet have hit the floor. So the player in the OP is allowed to jump off his one foot and make a jump stop. This is the reason I still participate in this forum, I've been around the game for 30 years, and reffed for 7, and learned something I didn't know today. Thanks guys.
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