Support BladeForums! Paid memberships don't see ads! I have the 240, 400 and 600 grit on the way. After doing a lot of research on this Forum and over at Spyderco's Forum a lot of praise came from these stones to augment the Sharpmaker Platform. I also have a new found admiration for Diamond Paste Compound. I currently have 7,5,3,1 and 0.5 micron sizes and boy oh boy you can really tell the difference coming off my Basswood Strop. So now I have my Hapstone for down and dirty serious work and the Sharpmaker for quick and easy touchups and sharpening's.