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The crazing on my Chosera 5k was bad enough to occasionally need lapping. Otherwise, as Bluesman pointed out, sometimes the edge of one of the regions would stick up high enough to catch a blade...

Yup, sorry to say I totally forgot that the snow white was part of the discussion.

With an 8k, TC would have the SuperStone, aka Specialty, Naniwa hones. I never have heard of any crazing issues with them, but they certainly can swell/shrink due to moisture.

The crazing problem...

That was exactly my concern. If water only can enter on the top it will soak into the hone more there than in other areas. Some hones do swell slightly. Having only one point of entry and egress...

I see no benefit to sealing synthetics and it might cause damage due to differing rates of expansion and contraction during wetting and drying. This is strictly speculation on my part as I've never...