Melbourne 100m video?

[hscoach]

@los

Is it just me, or has Powell lengethend his stride?
Previous seasons his stride has looked a little ‘choppy’ - but it gets the job done. From about 40m onwards (when he gets in front) it really looks like he is making a consious effort to lengthen - flicking out from the knee a bit.
Is this the influence from Usain massive stride? Is it really necessary?

i hope he is not trying to extend the leg for a longer stride