Many farriers diversify their hoof-care practices across multiple disciplines. The disparity often leads to a variety of shoeing modifications that are incorporated into one’s everyday work, and Doug Corey is no exception.

The heart-bar shoe is arguably one of the most used and recognized therapeutic shoes in modern farriery. The late Burney Chapman popularized the use of the heart bar. The Lubbock, Texas, farrier reintroduced the shoe to the farrier industry, most notably at the 1984 American Association of Equine Practitioners Convention with fellow legend Dr. George Platt.