"I always call in, when in New York, to see Ernest. I had only a brief chat with him on a recent occasion. Whilst Ernest laughs at the thought of the lever and buffer action being present in the swing I am satisfied it exists. You can go on swinging a club till you are blue in the face and never gain a yard in length unless you work on the 'heart of the swing' - the just before-and-after-impact section." Henry Cotton
"In golf the left hand flaps, whips, or hinges backwards, while the right hand works in harmony, forwards. This means that they work in different directions at the same time!" Henry Cotton
"At the moment of impact the hands work not together but against each other. The left hand must bear back against the right. Immediately prior to and during the moment of the club's contact with the ball, the right hand speeds up the club head. It cannot do this if the left hand fails to offer a backward resistance against the upper end of the club handle. This back pressure of the left hand must be exerted at the moment of impact." Original Golf Fundamentals, Dunns of Musselburgh, Scotland