Yes the arrow goes through the pentagon shaped cradle. Here is a pic of the rest on a bow with the arrow in it.
Just looking at the photograph of the arrow fitting through the rest. Does the fletching not contact the rest? Or does it matter even if it does? I am thinking of going to a Wisker Bisquit because I like that the arow won't move while I am in the treestand. One les thing to worry about when that big ol bear sneeks in!