I had The Derby blade as leaflet in my mill R101 with an open ridge. I found the first shave on the sides of very pleasant but not as thoroughly. Since the Wilkinsonklinge has something more "pulled" but was also thorough. On the neck still went fairly. Really bad it was on the chin. In the second shave then nothing was good. In addition, we read here of varying quality of the blades. Who wants to continue to play bingo or baby Flaumen has can thus be happy.
Now I have found my happiness at Feather. I must add that I have very dense and thick whiskers.