If you want to get a Master’s Degree in sharpening, Third Coast Craftsman takes you on a deep dive in his shop, showing a deep level of understanding in how to mirror shine his tools. Even if you don’t use hand tools, knowing this might be handy. I’m also sure that there are a million ways to skin this cat, so, to each his own. I am always amazed at the patience and level of detail woodworkers must have to get this precise.