Once my Lab got "heel" she would heel 5 feet off my left stirrup when we were trail riding. She loved going along. My mare was a solid citizen who wouldn't kick, even when the hounds ran under her belly during a fox hunt.
Good idea. She’s still not a good heeler. Mine and natures fault. We literally live up a hill and it’s been so cold and icy here that I can’t get her out where I will be safe to work on her manners. Soon though.