My father in law has been teaching me to trim my horses hooves. I've trimmed them with him there several times an done well. My horses hooves where past due a trim an my father in law hasn't been available. I trimmed him how he showed me but didn't do as well. There seemed to be extra tissue in the area of the bars and looked as if his hoof didn't end as far back as it should. It wasn't exactly hoof but wasn't exactly frog or sole either. The hoof didn't have that defined v shape where hoof wall meets bars. I cut a little away it seemed like calus. The hoof looked correct when he was standing an he seemed happy to have it done. I've looked a lots of pictures of hooves but nothing similar. Any ideas? It really looks like I should cut it away but when in question I didn't.