Todd,

Try this drill: At the range address the ball with say an 8 iron and taking a very narrow stance with the ball placed just ahead of your lead foot. Take the club back to the top with a full shoulder turn and momentarily before you get to the top take a step outside the ball with your lead foot and then come down into impact to a full follow through.

Using this drill you should be able to pick up on the wave like motion transferring weight to the front leg in the downswing.