FedEx guy just came... man, these things are awesome! And the fit is incredible! I'm wishing I had ordered another pair....
Anyhow, fit info, for anyone reading over this:
I wear between a 10.5 and 11, mostly due to the width of my feet. The Prototipo in 11 fits PERFECT; it's a narrow shoe, but doesn't squeeze in or pressure my toes. Hope that helps someone!