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
__________________
"From Putter to Driver, the Clubhead Lag technique is indispensable..." (6-C-2-A) Lag is the SECRET of golf!
Bending the shaft with the hands, arms, pivot and ball
First, without pivoting, I bend the shaft (backward) by pushing the grip with the right hand and right arm against the left hand and left arm with the clubhead against something stationary.
Then, for "Hitting", after Right-Forearm Pickup and Shoulder Rotation to the Top, I, again, keep rotating the Pivot backward while bending the Shaft against the Clubhead "Lag" as decribed above, and intend to bend it further with the Ball or Impact.
__________________ Yani Tseng, Go! Go! Go! Yani Tseng Did It Again! YOU load and sustain the "LAG", during which the "LAW" releases it, ideally beyond impact.
"Sustain (Yang/陽) the lag (Yin/陰)" is "the unification of Ying and Yang" (陰陽合一).
The "LAW" creates the "effect", which is the "motion" or "feel", with the "cause", which is the "intent" or "command".
"Lag" is the secret of golf, passion is the secret of life.
Think as a golfer, execute like a robot.
Rotate, twist, spin, turn. Bend the shaft.