So as mentioned in SOTD, I have been trying to perfect my edges by taking some blades that are good, but could be better back to the hone. Last night was the 567 which to be honest was a fine edge to start with but I wanted it to be perfect. I started back with a heavy fast slurry and move to finish with the slow slurry then with just water, checking under the scope as I go. Between each step I could see the bevel getting fuzzier and fuzzier (ie scratches too small for my scope to resolve). But then suddenly something very strange!! I found that just with water I was going backwards. I had washed the stone & blade under the tap to remove slurry too. New, 1k like (easily visible under the scope) scratches were visible!!! I am confused as to how this is possible but there it is. I put a tiny bit of slurry from the hard nagura back on the stone and did 10 strokes. The scratches are gone...weird. So I went back and did more on the stone with just water, but this time with a focus on no pressure, using a finger on the tip of the spine. Scratches reappear, but this time much less of them, and much smaller/shallower. Final thing I did was to do water only on the stone, but this time under running water. I could feel the stickiness coming this time, so was making advances. The scope showed a well polished bevel, but again with some scratches.
I am at a loss as to how I can get deeper scratches on a stone with no slurry, than with other than the slurry is acting as a lubricant, or maybe filling some voids? I did have the thought that these were 1K scratches that were only now becoming visible. I ran out of time but focus tonight will be to go back to the finishing slurry, and use an acute angle for another 30laps. Then go to the water only at the same acute angle for 30 and confirm the scratches I can see are new, and not old 1k scratches. I did make sure there were no signs of 1k scratches at each step but it is possible they are hidden in the fuzzyness.
Anyone have any thoughts on this? Anyone see this before? I've lapped the hone with an Atoma 400, and yes, I can see those scratches in the hone but I was lead to believe that when lapped, and smoothed with the naguras (when building slurry) these scratches have no effect on the edge.
Anyway, love to hear your thoughts on the matter.