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Re: We will be going 100% sharpening perv...

Patrick Chase
One thing I give 'scienceofsharp' credit for is finally debunking some of Brent Beach's more risible claims.

For example the "massive scratches" that Brent claimed to have found with Shapton polishers are nowhere in evidence. Shaptons run coarse (~33% larger abrasive size at any given grit #), have sh*t for feedback, and have obvious economic issues, but the one problem they don't have is "rogue particles" as Brent claimed.

As you say and to paraphrase MacArthur: SiO2 doesn't break down. It just dulls away. I suspect the confusion originated from the fact that natural waterstone slurry leaves a dull finish like SiC, and people not realizing which shared attribute was actually causing that.

I think the "meta-point" here is that even scienceofsharp's images can contribute useful knowledge IF you're careful about interpretation (i.e. focus on the scales and attributes that matter). He was not.

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Evaluation
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