I've sharpened a few stainless razors in the last few days, and they seemed to amplify an issue I've seen with my Shapton 15k finishing stone. The issue, it cuts too much. Really, it feels more like the Norton 4k than finer than the 8k. I use the slurry stone and water, but it really feels like it is removing material vs. polishing the edge. This seems to prove itself out with tests as well. I can easily get an entire edge to pass the HHT on the 8k, but only rarely on the 15k. I've lapped all the stones with my coarse DMT diamond hone. Could it be that the grit cuts from the DMT created to much surface roughness on the 15k? Or, maybe the slurry is the problem?

I'm confused, so any help would be appreciated.

Thanks,
John

Side note, I've noticed considerable differences in grit between various brands of sandpaper as well. I find that 800 grit 3M Imperial Wet/Dry is far more coarse than Gator Grit 600 grit Wet/Dry. Is there a standard which applies to sandpaper grit roughness?