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Sutton while we're at it.. You can see its not actually an inverted W because his elbow is not above shoulder line and his arm just about to reach it set point right before footstrike meaning his timing likely isn't perfect, but probably not too bad either.
Lincecum is actually slightly late as well, but excellent at everything else so I don't think it really matters. You see guys getting away with being a little late, just not extremely late.
I don't think Pineda's timing is as bad as Morrow's was after looking at the slow-mo, but I think the elevated elbow is a really big concern.