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It's an expensive stone, and one I had been holding out on purchasing. I was getting decent results from my 4000x pocket stone, so I made do.
This is an upgrade in the keeness of the edge produced. My only complaint is that it is mounted to a base, I prefer to use both faces of a stone, and double my time between lapping sessions. I am looking forward to the results I'll see in the future, as my blade faces become polished with repeated use. In the meantime, my forearm hair is taking a beating.