I've been using the same Arkansas stones, with oil, for a LONG time. They have gotten pretty concave over the years. Lately I've started supplementing with a steel and cheap strop or piece of belt leather. When it slices a piece of notebook paper, it's sharp enough for me.
Without a sense of urgency, nothing ever happens.
Boy, if I say "sic em", you'd better look for something to bite. Sam Shelley, Rancher Muleshoe Texas 1892-1985 RIP