Nice! O.K. if you have a hard tomo I would ask him for a slightly softer grit rich tomo. With those two it can make honing a lot more productive and enjoyable.
But if you want to do it yourself I remember it first starts with how it sounds and feel assuming you are starting with a fine even grit piece to begin with.
It's complicated but easy once you know how. I think the hard part is having enough different kinds of "quality" tomos to try. Until you find the right one or two.