Sorry need to read the pergolide suggestion in the response too quick to respond.   I hav a trimmer coming out nov 14 or 15 and will acquire hoof pics with a high grade camera at that time for posting and evaluation.   Specializes in issues as this
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Cheryl and Jewel
Oct 2018

https://ecir.groups.io/g/CaseHistory/files/Cheryl%20and%20Jewel