Hello. Today one guy has sent me his ZDP-189 knife. I thought that it will be easy but after close examination i have noticed that it is not straight what is not a problem. The problem is with grind. I think that it is 90/10 knife.
Red arrows show original primary bevel (or shinogi). The rest is a bevel which was grinded later. Guy who send me that knife said that it was like this before and that he sharpened it on diamonds (i think that it was diamond rod or something). Green arrow indicates lower spot on the edge. Other site of the knife does not have a bevel like this. It only have original bevel marked with red arrows.
Here you can see overgrind on the heel.
What would you suggest me to do? I was thinking about lifting shoulder of additional bevel (made with diamonds) to that shinogi line and make it even. Then sharpen it.
You can see that knife here. It's in the middle of the page:
If you need any other pictures then let me know.