Pic 1: The One Plane Golfer iron swing begins with the SETUP. In the picture #1 above, you see the setup with a 7 iron from the face-on view. I've found the best results are when I setup with my impact position in mind. Impact is everything in striking the ball consistently well. The setup position will be very similar to the impact position.
The key points in the One Plane Swing Setup are:
The club shaft is on a straight line to the lead shoulder in face-on view. (yellow line)
The club shaft is on a straight line through the right trail elbow in down-the-line view.
The wrists are raised in an uncocked ulnar deviated position so that the arms are in a straight line down through the shaft to the club head.
The right elbow is tucked to the right hip. (blue circle)
The side tilt is 15° away from the target. (green line)
The lead foot is slightly flared to the target.
The chest is over the ball.
The head is behind the ball.
The weight is 55-60% onto the left lead hip/knee/foot. (red line)
In the down-the-line view of the setup as seen below, the hands are in a raised and uncocked (ulnar deviated) position, so that the shaft angle at address is on a straight line from the club head, through the hands and straight to the right trail elbow. This hand position is illustrated below:
The yellow line represents the straight line from the club head through the uncocked wrists, and straight through the right trail elbow. The green line is the traditional golf 2 plane setup and is where most golfers today play from at address. The hands and arms are set much lower, where the club shaft is on a plane and the arms are in another plane.
Contrast this to the yellow line of the one plane setup where the arms and club shaft are in a straight line from the elbow to the club head. This forms one plane, where the hands are raised into an uncocked position from the old 2 plane setup, illustrated here by the red arrow. Here's another view:
Pic 2 : The club takeaway is low and slow. The trail, right knee remains flexed, stable and feels like it does not move at any time away from the target! The pant wrinkles in the right knee area do not change throughout the entire backswing and on through impact.
Pic 4 : The top of the backswing. The left wrist is flat and the club face is square. The right trail knee remains flexed and stable. The lead left shoulder is down with a good body turn. The hips have rotated down and back and the weight is still 55/45 on the left lead hip/knee/foot.
Pic 5,6 : The first move in the downswing. The weight has moved more to the left lead hip/knee/foot. The right trail knee is still flexed and stable. Club lag has been maintained.