One of the most confusing and misunderstood parts of the golf swing is weight transfer. Most of my students have no conception on how the weight transfer and more importantly when it transfers. First of all, you must position your weight 50% on each foot with the weight under your ankles; not on or toward your toes. Next, understand that your weight moves to the inside of your right heel on the back swing and then transfers to the inside of your left heel on the forward swing. Stand up from your computer and try that without a club. Cross your arms touching your left shoulder with your right hand and your right shoulder with your left hand. Keeping your position simulate the back swing; trying to feel the weight transfer to the inside of your right heel. Do that at least 5 to 10 times. Next, simulate the forward swing. Try to feel the weight begin on the inside part of the heel of your right foot and move to the inside part of the heel of your left foot. That is a completely different feel, but the correct way to transfer your weight during the golf swing.
Now when do you transfer the weight in relation to the swinging of the arms. First of all, a myth buster! The arms move the body, not the other way around. 80% of all of your power comes from your shoulders, arms, wrists, hands, and fingers. Only 20% comes from the trunk of the body! The back swing is really easy to understand; the weight gradually builds into the right heel as the club is swung to the top of the back swing. At the top of the back swing you should have approximately 70% of your weight on your right heel. The forward swing begins with the swinging of the arms and the weight of the body follows the arms. Here is the key, two feet before you strike the golf ball the weight is still more on the right foot than the left foot. Two feet after you strike the golf ball the weight is on your left foot. Please reread the last two sentences; it is the key to power producing golf!