Well…I have been working with my for mentioned Frankonian stone and have made quite a lit of headway.
Number 1 is that you have to rough it up some. I used my DMT x-course to resurface the already flat stone and it made a world of difference. It now finishes as well as my Black surgical (only does it faster). I am really impressed with the finish it produces.
I also tried to smooth it up from what you see and it didn’t perform as well.
Stingray
See the pictures:
Attachment 102079Attachment 102080