I wonder if you're feeling the down and out from impact to lowpoint. "swing down the line too long" is sometimes how that feels to me. I don't know if it's the same for you.
Daryl,
Could it simply be the difference between swinging with horizontal hinging, and hitting with angled. Angled hinging and hitting feels much more structured to me, and centrifugal force doesn't sling the club out and up as much after low point for me as it does when I HH.
Kevin
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I could be wrong. I have been before, and will be again.