The SM is not coarse enough to rebevel (reprofiling is changing the outline of the knife) an edge. It can be done, but it does take a long time. The SM is for touch ups and for final honing after using coarser grits. I start with a coarse stone (250x water stone or coarse Norton India stone, 90x) then go to a medium stone, a 1000x water stone or the corners of the brown triangles, then progress normally through the SM grits. For touch ups, I use the 4 steps for the SM. You can go a long time between trips to the coarse stone by using a microbevel. I set my coarse stone at less than 20 degrees per side, between 15 and 17 usually, then can use the SM to resharpen the microbevel of my pocket knives for months, depending on use. I rebeveled a Kershaw in CPM S60V with wet/dry sandpaper, then used the SM for a microbevel. I never had to go back to the sandpaper for the rest of the time I owned the knife, about a year before I sold it.