At 5 weeks I put all the litter in a pen with a tame 10# pig they just play. I will chase the pig and they chase me. My dogs dont touch dirt unless they are training or hunting. each week end I do the same. At 9 weeks they started chasing the pig. then the pig bit them and they started biting back. Now at 13 weeks its starting to get more serious. the dogs chase the pig and the pig will chase them. they bite the pig the pig bites them and they started baying. my dogs dont ever sleep more 50 yards from the smell of hogs. They see the other larger dogs going in the big hog pen, they can hear everything that goes on. As they start barking in there kennel to get out I let them out now and they run around the pen baying like the big dogs. As they grow, the pig they train with will grow. I feel to wait is to waste. I'm not saying to put them in a situation their not ready for. But expose them as much as possible. Thats how Joey dennison did it. Good Luck!
ric o.
well said... :)having the set up is nice...the only thing you didn't mention was to not over train the pups.