I find crock sticks more convenient than a stone because its difficult to find somewhere flat to lay the stone down. I also like sandpaper and a wooden dowel try to get some fine sandpaper if you can to keep the knife sharp at least 2000 grit but 4000 to 10,000 grit is best(I like my knives very sharp) as well as the courser grades. . I wouldn’t use natural stones on expensive knives like the manix sebenza just in case the stones are less than perfectly flat and sharpen the knives unevenly,at least experiment with your sak first.