A video has been posted of a jump test with the Athletic Propulsion Labs Concept 1. I made an earlier post about the shoe and I saw this video with the guy performing a jump test of the shoe. He jumped in the Nike Zoom LeBron 6's first and got his hand at about rim height. Then he jumped in the Concept 1's and got up higher than the backboard by a few inches or so. From the video it looks like the shoes work. I am intrigued by the idea of the shoe but $300 is a lot to jump 3 or 4 inches higher.