I have recently finished new handles for Masamoto KS 270mm gyuto and Konosuke Fujiyama White#2 270mm gyuto.
I must say that these are my favourite handles. Materials are Olive wood, Iron wood and white fibre spacers.
Tang in these knives are huge!!!
Original handle was to far from heel of the Masamoto. I moves it to the front. On picture below you can see two lines on the tang. Right one indicates old handle position. Left one is new handle position.
Konosuke got a new basic saya with Iron wood pin.