PSA: A quarter crack repair took me three hours yesterday

It was on a big warmblood with a deep crack running up the hoof wall. Thought it would be a quick patch job, maybe an hour tops. Ended up having to cut back way more than I planned to get to solid horn. Used a lot of acrylic and a fiberglass patch. The horse stood fine, but the prep was a beast. Anyone else find quarter cracks taking way longer than you quote the client?