It depends, when hunting raccoondogs, the dog can be hard, mute even, but when digging badger (it's legal here) I prefer a bayer that doesn't mix too much. And since you almost never know when the dog finds a badger, I usually prefer a bayer/mixer. For now it's a smooth fox terrier, and I have a German jagdterrier growing up, most likely to turn out mute, and a russel pup to have another badgerdigging dog.