I have been thinking about getting some Arkansas stones. I'd like to get a full set of them, but can't afford it right now. So I was thinking about just getting a Hard ark. For those that have all three, soft, hard, black tell me about your stones and how they preform to help me decide. Any help from hands on experience with the different types would help a lot and would be very appreciated. I basically just want to try something different that won't cost much.