The way the shoulders work on the backswing and downswing can be different. Learn from this video the correct movement of the shoulders. I call this the difference between a Ferris wheel and a merry go round.
Learning to improve the swing path on the downswing and entry sometimes needs to be a little abstract. I changed this student below downswing path from the left to right from this one crazy awareness and feel.
Flat versus upright. I m not talking about the swing itself but the equipment. Remember the shape of the swing is not based on address or the top- its how things begin to work on the downswing and then impact
Swing plane is a key way to encourage the body to move in conjunction with the release. Watch this video to learn why a "+" sign can help you sequence the swing better.