Alan,
That looks like a great call, as the determined heights of Shelley and Arce will show.
...
I become more comfortable with it being Arce each time I see it.
Okay, what if the reason our guy slowed down was because he wanted to look at what he was walking into, slows down and goes up on his toes?
Can you picture him doing that and would it make any difference to his height,(to me it seems to be in that area where he stops, he grows)?