[Steven Tyler]

Originally Posted by Manny A

The only authoritative document I've ever seen referencing the jump-turn move is J/R. And in J/R, it is described as the pitcher jumping up with both feet simultaneously in the air, and turning the body towards the base so that when the pitcher lands, his free foot gains direction and distance to the base.

That's clearly not what happened here, at least per J/R's description of the move.

If there's another authoritative reference that describes other ways a pitcher may execute a jump-turn, I'd be interested to hear them, just for my education.

That is what I referred to as the "classic jump turn" way back when. I'm really in the camp that wasn't a jump turn in the true sense of the meaning.