Why do you think that is so common? Lack of startup swivel?
No, I think most player feel comfortable setting the elbow into their side which to me is different then leading the elbow deep into the pivot with hands then clubhead lagging. I think Sweep release is more common. Not every shot is a delayed Trigger. This is how I see Pitch Elbow- deep, Maximum snap released.
It is not to say the elbow fixes itself to a spot in Punch- the body is turning and the hands are on path to deliver the clubhead.
I don't follow the start-up Swivel POV. What are your thoughts?