[Burner]

How is force applied or exerted "indirectly" via the pressure points? This would seem to me to be something that cannot be felt in the real world. Something that is said to be real but not able to be felt.
Also, when swinging, how can you feel/monitor PP#3 when you are pulling (with the left hand/arm), especially when the focus is on the left side (hand,arm), not the right? To me, this is like the Emperor's New Clothes. Those that say they can see it just don't want to admit they can't see it.

What BerntR said, plus............

the lag pressure felt on PP3 at transition (or before even) is monitored (felt) throughout the remainder of the swing - unless it is lost.

The hands work as a unit throughout the golf stroke, whether swinging or hitting. Pulling or pushing they are in it together.