I think it was a member on here called 3turns, who answered a simular topic on stock breaking, some dogs need a firmer hand than others, i know nowt about bull breeds, but if this is of any help to you, here is what i did at a very early age to stock break my dogs
First of all, i can read my dogs like a book that is the interest i have in my dogs, so, take your dog out on the leash where there is livestock, now this is where you have to be able to read your dogs mind, as soon as the dog clocks livestock, a sharp tug on the leash with a simple command of no, if the dog is headstrong, then crac