You can trim your own horse's feet, but I am not doing that. I hire a pro farrier to trim my horse's feet.

What is going on here is that I have, basically, what are effectively "horse sneakers" that go on my horse's feet just like people sneakers go on people feet. I am having some fit issues with the "horse sneakers" and I am modifying the sneakers to fit his feet better. I am not modifying his feet to fit the sneakers better. There is no horse foot trimming being done by me. All trimming is done on the horse sneakers, not the horse's hooves.