At the end of one video you see Ted Hitting with his right arm only.
But you can easily do it yourself:
IMO, the main benefit of doing this is that it clearly shows the importance of keeping the right forearm on plane (behind the shaft - always set in a pushing condition).
You may find it difficult at first but you will learn a lot about your motion and what you should do.
HOWTO:
set up with your right forearm flying wedge at impact fix,
freeze your wrist angles,
just go back and forth in a piston like motion,
learn to straighten your right arm without flattening your right wrist and destroy the ground.
Start with Basic Motion fisrt
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"From Putter to Driver, the Clubhead Lag technique is indispensable..." (6-C-2-A) Lag is the SECRET of golf!