There are two things that have been drilled into us for years. The lower body leads and hold the lag.
The first one is actually true for a split second and is over done to a damaging degree. You all know what I think of the second one…PU.
These two things have something in common. They make the arms passive, slow down and trail the rotation of the body. This in turn causes the body to slow down to wait for the arms to catch up. If nothing, I am redundant to get my point across.
While understanding in a proper kinematic sequence that the lower body and hips do in fact start a split second sooner (the bump)…in a good backswing the shoulders will have turned twice as far as the hips (standard 90* and 45*) and the arms have rotated across the shoulders…additional intent to lead with the lower body and let the arms fall behind is a disaster.
I will leave you with a rhetorical question and will have more discussion about this in a few days.
What is going to produce more shaft lean and club head speed at impact?
1. The arms accelerating out in front of the body.
2. The arms lagging behind the body.
PS-I do have many more pictures of golfers with this issue. This particular one gets posted because he is brave and not embarrassed by what his swing used to look like…more importantly, he had the biggest immediate improvement. 5 minutes.