I have a 1918 WWI Ball End that needed repair, which I did. It seems though that in the field that owner broke the original screw post for the handle and replaced it with something similiar to keep both halves together. I tried it this morning. Odd thing I noticed was that one side had an exposure of 3/64 - 1/8 of an inch the other was about half that. I took off the head and look at the centering of the blade. It appeared centered in all three posts. I tried it once more and it felt like someone was sandpapering my face. I put it away and went to another DE. Any thoughts as to rectification?