That's amazing! I'm always in tremendous awe of amputees!!! I admire their athleticism to be able to go out and do the things that some of us with our original parts have trouble doing. Advantage or not (and how could missing both legs be an advantage?- I just don't see it), he's an amazing athlete. Sure, carbon fiber calves would be nice, and my ankles/knees wouldn't get so sore and achy- but going through that and dealing with all the struggles just to be able to run is....simply incredible. Hats off to him!