BMH that i have seen (only a few ) work on a line and most are never let walk free like the HPR Spaniels and labs. The owners find it near impossible to stop them hunting at heal and that has to be understood when you get one. They are not naturally clever dogs and will work more on instinct formed form generations of sent hounds. I have yet to see a BMH walking at heal drop to shot and find on a hand signal in the field while out stalking. If some one has such a dog pm me as i would love to witness this dog.