i've been thinking of getting a better sharpener for use in the field, i'm currently using a little stone that i picked up for about 50pence at a local DIY store, it's worth every penny! i was looking at a credit card sized diamond sharpener, this is basically a piece of steel coated in what i can only assume is diamond dust. it looks to me like a good idea, but i don't know anyone who's used one so i don't know if they're any good, and because i'm pretty tight when it comes to money i'm not about to spend money to find out that it's crap. so can anyone help me out here, has anyone used one of these, are they any good, would you recomend me spending my hard earned cash.<br>thanks in advance<br><br>take it easy<br>stuart.<br><br>p.s. i don't know if it makes any diference or not, but i'm guessing it could, it'll be used for sharpening both stainless and carbon steel blades.