Active pivot versus reactive pivot

[Yoda]

. . . I still believe that the reactive pivot swing is a viable option for elderly inflexible golfers. Jim Hardy uses the reactive pivot model in his Hardy 2PS model and Leslie King also uses this reactive pivot model in his arm swing model. It has many disadvantages, but it also has many advantages for golfers who cannot pivot correctly due to biomechanical limitations.

Sorry, Jeff . . . I don't buy it.

However inflexible, infirm, elderly or whatever . . .

The Body still 'sets' -- at the very least -- and the Arms and Hands 'Deliver'.

Not the other way around.