Congrats on getting a colt. I always thing of Peppy San Badger, Peptoboonsmal, High Brow Cat, Doc Olena, Doc's Hickory when I think cowhorse/cutting. We used to own one of Al Dunning's horses Hickory Dickory Dock, obviously of the Doc's Hickory line and he was just an awesome novice friendly horse! I personally would recommend that line!