thanks bros! nice to hear of some user and people with know how
@grey-array: the sheath is a singel piece of leather but I always make a custom bit with exactly fits the blade in al along the blade (also a bit on the back) and which acts as a stopper for the razor sharp edge (made it 100% scani). As you know it also prevents the stitching from cutting.
So in all; there is no room to move in the sheath.