Finally got to try out this 1915 CARBO. I can tell you that this thing is hard, it took a long time to lap.
After advice from
SRP member Croaker on another thread I used it as an intermediate hone. After setting the bevel on the DMT 1200 I went to the Carbo. This is where I would normally use the BBW, But after 20 laps on the Carbo this Bengall was poping arm hairs 5mm above my arm with very little resistance. After that I gave it a bit more polishing on the coti and got a really sweet shave from it tonight.
A very nice hone, I'll be hanging onto this one.
Grant