The diafold is excellent. If you're a novice, it takes a little practice, but if you hold a consistant angle, it can't be beat, and, you can use this on ANY blade, no matter how thick or what the angle of the blade. The pocket sharpener is great too, just not as versatile. I've got a full set of the diafolds (extra coarse down to extra fine) and a few of the pocket sharpeners. The pocket sharpener is great for every-day carry, but if I get a piece in really bad shape, or somebody wants a true shaving edge, I fall back to the diafolds (I'm the guy in my circle that everybody wants to touch up their edges for them).

Troy