Has anyone seen these Reign broadheads? http://www.ephunting.com/products.html I saw a commercial for them today, and they have a swiveling blade. I know I am new to this, but it seems odd that you would want a blade that swivels. Isn't that why when mechanical heads depoly, they lock out so the blades can cut? I don't know if I would ever buy these, but I just wanted to know what everyone else thought.