Pen or Woods?

If you have a dog to hunt pups with I would go to the pen once just so they are familiar with a pig. then to the woods with the older dog. but if I dont have an older dog, I show em a pig, let em bay at it. hold them back and turn the pig loose. then cut the pups loose and let them run it. you can increase the distance you let the pig out until you are letting it out without the dogs watching and then cut them loose. This seems to teach the dogs to hunt good because every time you cut them loose, they can find a pig. you just gradually make it harder. Still no replacement for hunting with good dogs but sometimes you gotta do what it takes.