Hello,
yesterday, I was a bit in a hurry, so I wasn´t able to type so much about the stone. It is 4cm x 17,5cm and I had to lap away about 5mm. I used abrasive sand on a marple plate. To prevent hitting the BBW layer, I had to lap it more on one side. Due to the "scars" on the back, which are pretty deep, I think that I have 4mm until I hit the BBW and 6-7mm until I have a hole in the middle. Thus, I am not so fond of the back, although it looks great.
The coticule side has a little bit of the pattern, my la Dressante has, I think, la Griese has it, too… I think, you know, what I mean.
The grey line between the Coticule and the BBW looks wider, than it actually is. From the side, Its about 2mm wide.
I made a pretty quick dilucot session (about half an hour, which is pretty quick for me) on a George Butler with pretty much hone wear (I´d love to have the same razor without hone wear…). Very good result. I have the feeling, that this stone acts pretty fast and leaves a crispy edge, although I´m far too unexperienced to really answer that questions.
Anyhow, this is my narrowest coticule and now, I get what you are talking about. If someone would ask me now, I´d say, go for a narrow one, 4cm or even 3cm.
Kind regards,
Tok