Trained quite a few back in my day, but not from a puppy. Saved one that was going to be put down by the USMC because he was too aggressive...ate too many handlers, he was a straight explosive detection dog. We got him certified in patrol and put back into the fight.
My lab is the big brother, teaches him the left and right limits of what is acceptable and not (biting my tail and privates), chasing OUR cats.
I'm going to train to retrieve waterfowl, not by any hunt test standards...just pick em up, shredded, breasted and tenderized 🤣
Right now this future hunter of man and waterfowl is crashed out with my wife, it's all in the training.
My lab taught me about puppies, everything is edible