I'm in need of a new whetstone for my kitchen knives. I want a water stone and I'm not trying to spend a lot of money on some name brand fancy stuff. I've used whetstones many times before but most of the time they were a family members stone and I didn't actually know the grit of what I was using. I'm looking at two sided stones and I'm wondering, as a person who's planning to take care of his knives, will I ever use a 240 or 400 grit on my knives? Two products that I'm trying to decide between: http://www.amazon.com/Japanese-Prof...g-Sharpener/dp/B000UZET0M/ref=zg_bs_289867_17 A 240/1000 combo for $29. http://www.amazon.com/Messermeister...379168934&sr=1-1&keywords=messermeister+stone A 400/1000 combo for 21. The 240/1000 is one of the best sellers on Amazon and has tons of good reviews. The 400/1000 only has one review that is kind of worthless as it seems it is from someone who doesn't know what they're talking about. Out of these two, which would you suggest? Or would you suggest something completely different? A 1000/6000? Is a 6000 grit necessary for someone who isn't obsessed with keeping their knives at the absolute sharpest?