that's it Jim, get them out as soon as there jabbed up , my younger dog was out at 9 weeks old, he knew what stock were, fences ,ditches etc he deff learned all his field craft. And as seen rabbits from young age when he did start run couple at 6 months old it was no big deal for him, ive never looked back with him , ive had good bags as ive said on my thread, and he take any quarry that he put on, he very calm dog when not working, but full on when does work, get them out when pups you wont hurt them , you not pushing them, pups will play all day long its just extension of that