After twice through the original post
I read it twice to make sure before I answered, and the question I would have is, "Did you hone the razor with the Coticule"
If you have the Coticule, this would be a great "sharpener to use before the Coticule finish...
This stone alone is one of those unknowns to me...Sham seems to have used the stone and I would take his 7k reference to the bank on it.. I guess you are going to have to try it alone and see what you get out of it, then if you have the Coticule, try finishing with that after the 5k, and see what that yields you...