I touched up three razors using the same method. Coticule with light slurry, coticule with lather, thuringian with slurry, thuringian with water followed by 10 laps on chromium oxide. Two razors turned out great. The philly didn't do so well. They were all in about the same state when I started so I don't understand what happened. Are Philarmonicas more difficult to hone? Do I need to start with a thicker slurry on the coticule? I'm kind of perplexed.