DC3/DC4
I already own an DC3 & decided to get the DC4 because of the slight increase in size, I've had great results with my DC3 & now with the DC4, I.M.O. you can't get a better pocket stone for ease of use & price. Although there are reports of the stones splitting, neither of mine ever have. I'd highly recommend either if these stones for all of your sharpening needs, and before you think you need something larger, let me just add that I've had great results putting an edge on one of my 10inch blades with a DC3.