How many of you guys carry them and what do you prefer - stainless or carbon steel? I've found a manufacturer of some beautiful Sheffield carbon steel folding knives and I think I'll be investing in one soon, but how much more maintenance will carbon steel require over stainless in terms of pocket knives? It'll only be a small, non-locking blade that I'm buying as UK law states that the only knife you can carry without good reason (good reason being occupation, of which mine would cover carrying a knife at times anyway) is a folding, non-locking blade under 3 inches. We have some problems with kids stabbing each other all the time over here so the law's pretty harsh on carrying blades. Anyhow, carbon or stainless? FYI - here's the eye candy of the maker I'm tempted by http://www.sheffield-cutlery.com/pocketknife.html