Review on 🔪 Mercer Culinary 1000 Sharpening Stone - Enhanced Abrasive & Finishing Products by Phil Kowal

I've used this stone three times to sharpen a knife and now the 400 grit side feels the same as the 1000 grit side. The stone doesn't silt up like my stone The King 1200 does, and presumably it will be polished more and more to the point of being unusable. Needless to say I'm very disappointed to have found this out just past the return deadline so I'll stick with it for now. I have soaked the stone for an hour before each use and kept moist during use and under the same conditions my King Stone works fine so I don't think this is user error.