EDGE RETENTION/ROLLING PART II

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What we know of steel sharpening cannot be extrapolated to ceramic.
Unlike steel blades, where you get a well cutting edge off the grit  #400 (30 micron), and a shaving edge off #1000 (20 micron), the ceramic edge will be blunt after #400, and hardly cutting after #1000 - it has to be sharpened further on the finer grit of 5-6 micron (#3-4000) to get it sharp.

Have a look at our BESS scores we get in the process of sharpening ceramic, they are similar to you numbers, and generally speaking correlate with the abrasive grit more than the steel.

CBN#400 500-700 BESS >>  CBN#600 500 BESS >> CBN#1000 280-400 BESS >>  5 micron diamond 105-120 BESS >> 0.5 micron diamond 55-90 BESS

Does this suggest that instead of actually cutting the ceramic, a diamond particle is removing material by chipping it away. So due to the roughness of this chipping, compared to steel, a much finer grit size is required to achieve the same fineness of edge?