Lynn talks about why some shorten their left arm after impact.
There is also a sequence of the swing shown at the beginning and the end of the clip.
Maybe this will help: in the frame at the bottom, look where both arms are straight for the first time and the direction they are facing. Beside remaining in front of the chest, the clubshaft is NOT pointing at the target but angled about 45 degrees across the base line. This is where they straighten together for the first time. The rotation doesn't stop and the arms keep moving but if you wait to face the target before straightening the arms, it is too late because the left arm has too move inside and up. That shortens the left arm anyway on the way to finish so it will be too late to straighten, you then lost rhythm and a your Horizontal Hinge action.
Hybrid Mode
