In my opinion, I like the first video better than the last 2. In those 2, he's lost any forward trunk flexion contribution he had and, as a result, he's standing up very straight as he releases the ball. Notice his finish in each. His stride may even have gotten shorter. So, now he has a short stride, with no trunk flexion. He's probably just trying things out and that's part of the gig but I'd feel better if he put those items back to work.