My earlier trimming strategy , including mistakes. Some of Jaime Jackson's wild horse hoof photos shown. Link to Dr. J. R. Rooney's studies on how differing terrain effects wild horse hoof form. Wild horse cross-section from Jaime Jackson. More on the good effects of low heels, and how a correct trim effects hairlines.
Correct trim takes leverage off toe and moves the base of support backwards under the leg.
Wild horse cross-section from Jaime Jackson. The role of poor hoof mechanism, high heels, long toes. Drugs and shoeing as palliative . The natural, mechanical approach actually results in more structural improvements. Examples of heartbars failing, trimming mistakes, damage from horseshoe nails, high heels and bars causing navicular syndrome, and using hairlines for correct hoof balancing.