I haven't tried it on a continuous surface like the diasharps, but the perforated surface xfine left a bit to be desired. The edge it left was great though, nice and fine but with decent slicing ability. Unfortunately it left an uneven finish (cosmetic) and didn't give good feedback while sharpening. If I were to get a new one I'd use it for microbeveling only, where the diamonds would do the most good on the modern high-carbide steels.