My only nice knives are some entry level Shun Classic knives (still too expensive for my tastes). I love the looks, the feel, and the initial sharpness. The chef knife is starting to drag a little, so I need to get a sharpening kit. While the gear guy in me loves the look of JK47's kit, I think I might go with a couple stones since that feels right to me. Does grit choice depend at all on the thickness of the blades? The Shun Classics are pretty thin.