Something I noticed in all the pictures you posted, even the "before", is that he looks pretty sucked up in the forerib. In my personal opinion, that is a red flag for a hard doing animal. The person who sold him fed him up enough to hide it if you weren't looking for it, but some work and reduced caloric intake brought it out in a big way. If he gets checked by a vet and gets healthy, it will be interesting to see how he comes back. My guess is he will never look quite the same. We had one we purchased do the exact same thing, and he had no illness to contribute to his poor condition. We kept some of his heifers in the replacement pen, but they will be watched closely for that underline trait, and all of his bull calves got the knife. He himself, was shipped....I couldn't get condition I liked back on him for a Wisconsin winter without going broke, and I don't like feeding ugly cattle. He was an expensive lesson learned, but now I am very critical of that forerib in breeding stock.