I want to get ONE stone to keep in the kitchen for sharpening kitchen knives. I don't like taking the knives out to the shop to sharpen them, and I don't like bringing my shop stones (Shapton Pros) into the kitchen and back out to the shop. Since about the only stones I haven't tried yet are Spydercos, I thought about getting one of their bench stones. For general sharpening should I get the medium or the fine? I'm afraid the medium might not be fine enough for general work, but I also wonder if the fine might be too slow to bring the edges back up in a reasonable amount of time.