That is why I said we are talking semantics here..i.e we are using two different definition of plane. you are, I believe, looking at the plane from the ball to shoulders, I am refering to the shaft plane as established at address, it is even drawn on the pictures for us (The line of the shaft at address going through VJ's midsection). These lines are parallel. His club is touching this line halfway back. At the top his arm/shoulders are parallel to that line again. This is what is meant by on plane throughout the swing.