Who in the world is this freakin' Hacker???

[alex_chung]

Is it not taken from Ernies video??? Was it "How to build a swing" or something like that. I recall that Mr Hay was the narrator.(is that the name?)

I really don't know mate. Its not a video that I have seen so can't tell you if he did the narration or not.
Alex

[Mathew]

Ernie Els is a great example of a stationary head.

I often think the reason that players (even some of the tour players) develop their bad habit of their head moving downwards and backwards on the downstroke to varing degrees is because their vision and its changed perspective makes it phychologically easier to accept the longitudinal acceleration of the swingers stroke pattern that way....