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layer: "La Nouvelle Veine"
extracted: Coticule Quarry at Ol Preu.
size: nearly rectangular bout: 3cm X 20cm.
natural combination hone: thickness of Coticule: 8mm, thickness of BBW: 15mm
speed with slurry: slow(range: very slow - slow - moderate - moderately fast - fast - very fast)
speed with water: slow (range: very slow - slow- moderate)
slurry: a modest sensation of very fine abrasion, typical sound of "sharpening steel" Slurry turns gray slowly.
water:a very faint sensation of the finest abrasion. a comfortable draw.
Slurry specifics: good slurry release.
Sharpness level coming off slurry: ++ (range: + shaves my armhair barely, ++ shaves my armheir well, +++ sufficient to shave my face)
Finishing properties, water only: water only: excellent. hone leaves highly smoothed edge.
Dilucot: follow standard procedure. Take your time diluting.
Unicot: follow standard procedure.
Touch-up hone, use with water: capable of reclaiming slightly dulling edges. 60 -100 laps depending on edge condition.
Additional remark: a "nec plus ultra" finisher very similar to n°25. It will work well in a single hone setup, due to its size: the narrow width assures a bit more PSI than on a wider one. The good length promotes extra steel removal per stroke. Both properties compensate to some degree for the inherent slowness of this Coticule. It still requires some extra time though.