OB Left - you are presuming that the low point must always be opposite the left shoulder. That may apply most of the time, but not necessarily all of the time. I don't think that it applies to Jamie's driver swing. It is possible to get the hands ahead of the left shoulder at impact with forward shaft lean - which means that the clubhead is on a descending path and not an ascending path. In Jamie's photo, the central end of the clubshaft near the hands has forward shaft lean at impact - even though the hands are ahead of the left shoulder. Note the bend in his left elbow at impact - which makes this possible.
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