MODIFIED FACTOR

How Colin Montgomerie does it

Despite a hall-of-fame career, Monty breaks almost every swing rule in the book until impact. Notice how far he drops his right shoulder from the top to impact. It's a severe move he's grooved to go from O-Negative at the top to very O-Positive through the hitting zone.

Address: Neutral O-Factor sets up a backswing only Monty can control.
Top: A move common among taller players — negative O at the top.