LADD Drill - The left arm in the downswing is a key drill to help you master the lead side movement of the golf swing. The left arm in the golf swing is one of the most important fundamentals of learning the Rotary Golf Swing. The left arm has to rotate throughout the entire golf swing rather than what most goofballs on television will tell you which is to hold the club face square to the target as long as humanly possible.
Nobody actually does this in the golf swing or they lose a tremendous amount of clubhead speed. How much coverage speed? The center of the clubface is actually moving about 7 to 8 miles an hour faster than the heel when it's rotating properly and I don't know about you but I don't think you can afford to give up 8 miles an hour club at speed especially when it takes no effort to produce it.
-Dr. Jeffrey Broker, Assoc. Prof. in Biomechanics at University of Colorado at Colorado Springs and Former Senior Biomechanist for U.S. Olympics Committee
-Hub Orr - Happy PREMIUM MEMBER of RotarySwing.com
-Sam Jarman, PGA Golf Instructor in the UK