Richard replied to an email as follows:
"I can see that my statement about it being a left-hand power generated swing could be misconstrued.
The left hand is more active in the first movement making a conscious rotating action so that the thumb can slip into the pocket of the right hand. Once they come together in this way, they act as a single unit and certainly don't "apply power" to the shot.
If one were to hold a bull whip, not something I do every day(!), thinking about powering the very tip wouldn't generate the crack. It is the result of the power generated by the large movement which has the effect on the extremity.
I don't think about the hands at all once I've brought them together at knee-height. They act in unison and in a non-conflictual mode. Neither is dominant. I see their roles as differing in that the right hand keeps the structure in position with the right elbow forward. The left hand is simply going straight back and straight through and over the ball.
If you wish to post this on the Forum, please do so.
Played yesterday and nailed every fairway in a 9 hole three club competition; I took a 3 wood, 7 iron and putter and was never troubled by the
lack of the other 11 clubs!"