I don't have a way to measure, but it even looks as though the hoof is the same length from top to bottom in both photos. The flaring from the photo on the left has been removed, and the surface of the hoof wall has been smoothed by the rasp in photo two. So what happened to the crack?
My farrier returns in six weeks. I am wondering if the crack will be gone by then. I'll be sure to do a follow up post.