So I recently picked up a Naniwa 12k hone. I already lapped it with sandpaper but it was inconvenient. I am wanting to get some sort of tool for lapping that is quick and easy.

What is the best tool to lap this particular hone.?

I have read great things about the DMT D8C, for lapping stones such as the Norton 4k/8k, but my hesitation to buying this plate is I am worried about leaving rough scratches in this hone, OR wearing down the hone too quickly, and removing too much material off of the hone. The flip side of this is it seems the higher grit diamond plates (which would seem more fit for a high grit hone) are not fit for lapping hones since they will be stripped of their diamonds. What to do?

Also, even if their are scratches left on the 12k hone from a rough 325 grit diamond plate, will this really make any difference when it comes to honing?

And help and advice would be appreciated