http://youtube.com/watch?v=WvIqccN-TCU&mode=related&search=
thats a new nike advert i came accross! they show asafa powells start in the beginning and in slow motion at about 1min. thoughts? 
his back foot clipped the floor?!?!?!
other than that seemed pretty good!
he clips the floor quite often tho. i’ve noticed this a few times.
boldon clipped the track exact same way as well, in 97 in his Athens WC Quarter race when he ran 9.87.
I’d say he’s just putting on a show for the camera, trying to get maximum air time.
He noticably stumbled and clipped the floor when winning the commonwealth title too.
Definitely gets triple extension here! Doesn’t whilst running though.