[arche3]

Originally Posted by toly

Here are pictures of Federer forehand with different camera speed.


Figure 1. Federer forehand - high speed camera

Like Nadal, Federer rotates relevant parts of his body very smoothly and without abrupt sideway acceleration.



Figure 2. Federer forehand - low speed camera

The last three frames of fig.2 demonstrate extreme wrist activity and arm pronation. It is absolutely clear that Federer and Nadal don’t follow Wegner instructions.

I think you need to show at contact to finish. Not drop to contact. Then you can really see the across and finish. The way you have it doesn't show anything remotely related to Oscars claims. It cannot because you omit the part of the video that Oscar instructions talks about. It only proves Oscar says to aim the butt cap at the ball. Not the finish.