Miff,
He's got a small foot about a 2 or 2 1/2 on a scale of 1 to 5 where 3 is average. The typical stakes winners at CD have a hoof size of 3 1/2 or greater. IMHO, just because he won a maiden race race going 6F at 2 doesn't mean he can compete in this class going a distance of ground at 3. He has struggled over poly throughout his career. While this was his first race on the surface, he has had a number of works over it, none of which were very good. While CD's main and poly aren't the same they both seem to favor big footed horses, poly more so than CD.
Just a hunch on my part but I will need to take a stand because I think Pyro is going to get a lot of wise guy money, "he ran great before and now he's back on dirt."