[Burner]

The most powerful swings are ground-up motions in which the hip rotation initiates and aids the shoulder uncoiling. You can uncoil over a passive lower body, but it's not as powerful - the Faldo makeover by Leadbetter is a good example.

And, how does the Right Arm contribute to Left Arm speed in a Swinging Procedure using Accumulators 4, 2, and 3?

There is no such thing as "a ground up motion" - all golf swings are top to bottom motions with only reaction - or resistance - to the force generated being provided, and felt, from the ground up. Newtons third law - (paraphrased) all actions have an equal and opposite reaction.

I will answer your other question with a question of my own - do you know of anyone who hits a golf ball as far with his left hand only as he does with both hands on the club, be he a swinger or a hitter?