I've got a thury headed my way for a little test drive, and I could use a little info on how to drive it. The main thing I'm wondering is about the use of slurry. I know you can generate a slurry, but what I'm wondering is if a thury's slurry is similar to a coti's slurry in that it has a certain dulling effect on the blade. To achieve maximum keenness on a thury, is it necessary to slowly dilute the slurry until you're just working with water (as is done with a coti)?