Your weight should be 50-50 on your left and right legs and between the balls of your feet (those cushioned pads just below your toes) and your heels. I'm surprised how many people think their weight should be supported by their toes. Starting with your weight too far forward is one of the worst mistakes you can make. It throws off all of the critical angles—spine, legs, hips, shoulders and head. That creates a domino effect, resulting in a weak swing and fat shots.