training with tame hogs

I have used tame hogs in the past, and have nothing against it. The problem with some tame hogs is they don't know or don't care to try and defend them selves. This IS VERY BAD to train your dog on.

I had a Giant sow, that would eat out of my hand, follow a feed bucket anywhere I wanted to go, and expected some back scratches, that was a great pup trainer. That hog would hear the chain on the gate rattling and start coming, whem Bessie saw a dog she was in training mode. She would go head to head with any dog, and fight. She whooped alot of dogs that wanted to be tuff and try to catch, I loved her, she taught alot of dogs to bay and bay with respect.
I have tried with some other hogs that would just squeal and try to run and one dog would have a hogs hams ripped and crippled within minutes, making them absolutely useless to me.

So to answer your question, it is like anything else, they are individuals, some may be good and some may just be a peice of pork your dog is gonna chew on. I would take a dog that is gonna bark at them through the fence and the hogs that charge the fence and appear to want to eat your dog, might be worth taking home and trying out.
Train on something with attitude because that is what they are gonna get in the woods, and you want to train them the way you are gonna hunt them.