Hi Pasi,

I have two suggestions.

1, don’t rely on you final finish from diamond stones. I haven’t figured out why yet but scrapers and diamond stones don’t mix well for me. Try wet or dry sandpaper going up to 800-1000 grit (don’t bother stropping).

2, when you turn the edge with the burnisher do so minimally. The smaller the ‘burr’ the better (within reason).

Also, although scrapers will tackle grain nothing else will, don’t tempt fate by going across the grain unless that gets you a better finish. 🙂