When I first started honing, I used a 1k, then a Norton 4/8, then I went to 1 micron diamond on leather, and ended with .5 micron CrOx. I still have a razor with that edge on it and it shaves wonderfully. I suggest getting an 8k at least. The diamond pastes can be aggressive, and do funny things to the edge. When I was using the 1 micron diamond paste, I did max 10 passes on each side. Same with the CrOx.