What about the two right fingers of the right hand?
I was swinging today on the range and getting great results by focusing on the two right fingers of my right hand.
On the backstroke I sense a pressure in those two fingers as I make my right forearm take away.
On the donwnstroke I was again keeping my focus on those two fingers, specifically the pressure behind the shaft which seems to be kissing-cousin to the right index finger.
The book does not mention these fingers and I find it curious as to why?