This whole thread of trotting wide behind has been very interesting. I show dogs and movement is important. At the trot, dogs move with the legs converging toward the center almost to the point single tracking. The dogs that move wide behind are dogs that are not balanced front and rear. That is, they may be straight in the shoulder but have a lot of angulation in the rear. So to avoid hitting their front paws, they either crab (shift the rear sideways) to avoid hitting the front paws, or move wide, to avoid hitting the front paws. If the front angulation and rear angulation match, then the dog can move efficiently and track properly. Is this an issue in horses... can there be too much rear angulation and not enough correct front angulation, therefore wide rear movement?
