Leverage is how you use your wrists joints and arms together in the golf swing
Understanding your equipment is necessary for good golfers; hit down with irons to make the ball go up and hit up with metals to hit longer
There should be a slight weight shift in the swing, very minimal going back to your right side on to the inside of your right leg followed by a subtle bump to your left side on the initiation of the downswing getting the weight forward and eliminating fat shots