CAT twist bones issue

#1

Hello guys.
I tried to create twist bones in CAT rigs for the arm and legs.
All I want is that the second bone moves 100% with the lower one. For example, so that arm second bone inherits palm 1 axis rotation. But it seems not possible.
I tried adjusting twist bones parameters, but it interpolates twist between two bones, and in a strange manner I would say. You can’t assign it 100% to one of the bones.
Also, if I rotate the palm, the upper twist bones of the arm also rotate a bit, which is strange. because axes are different.
Has anyone encountered this issue?