Early Starters vs Late Bloomers

I said it took that dog 3 years to start huntin... I think it had a lot to do with the fact that he was my only hog dog and never got hunted with other dogs. He was pretty much self taught. It was difficult finding hogs with just him to get him much practice but I did it. I have had other dogs since then that have learned from him and had a good head start. I'm hoping my new pups pick it up quick but I'm not going to push them anymore than I need to. The last pup I had I think I put him on too bad of a hog too early and it messed him up. He would trail a hog fine but acted like he was scared of a bay. I saw him get back 50 foot from a bay and halfway bark with his tail between his legs after he got cut by a bad one.