Same thing happened to us. We have woods dogs and put them in a pen for the first time a couple of wks ago. One thing I've noticed in the pen is the dogs feed off the pig's energy. If he is lively and rank as all get out the dogs do awesome. They lock in, crank up the tempo and get to work just like they would in the woods. If they get a worn out pig that just wants to lay there in the mud(like the one we drew in bremond) they just don't bay as hard, they start to get bored real quick, and they start to give you the "Daddy, you want me to bay this?

Its already half dead" look. Where as a seasoned bay pen dog would have stood there in front of that hog and bayed for a solid two minutes just like its been trained and scored pretty good.