It seems to me you are a responsible dog owner, so to avoid any misunderstanding and more my previous message was not intended for any accusation or else. Speaking from my own very limited experience, I only did train 2 dogs i.c. a Mallinois, the kind of dog very eager to learn coz that breed is known as rather smart. I start training as young as possible, best time early in the morning on an empty stomach. You will be surprised, @least for a Mallinois, how fast they take it up. I got my knowledge from a well known professional dog trainer in my home town and online from some books on this subject. I have no doubt @all that you can find same for your dog, though a different breed. But if you are of the opinion that the use of a prong training collar will not do any harm @all to your dog, who am I to say any possible negative about. So wish you all success needed for the final result you're looking for.