At least I have finished new handle for Masamoto yanagiba. I have to say that it is the best handle I have ever done. It's made of Stabilised brown maple burl, water buffalo horn and new silver. I had some problems with grinding it because new silver was getting hot very quickly so I had bucket full of water with ice and I immersed handle in it every few seconds. When I was finished and started to polish it I had to unglue it and glue it again just for sure. Also I checked for straightness and symmetry every few seconds.
Then I mirror polished flat face of the knife. I knew that it will be little bit concave so instead of doing it with sanding paper I have used stones.
I started with Atoma 140 to flatten it. You can see that I was removing steel from sides first. This shows me that it is concave.
My next step will be removing original grind scratches from blade road, sharpening and polishing and when I'll be finished I will make kasumi with Uchigomori fingerstones.