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I think you lost sight of the original purpose for the pyramid. It gives you a dependable procedure for arriving at a good edge, eventually. It's also pretty quick if you're working with a dull...

That is interesting. You can't emulate a 6K that way, though.

When you use the 4K you leave a 4K stration pattern. The 8K only cuts half as deep, so it will striate only the high areas on the...