Jason, please do. As I've said, I had nothing but good, honest products and service from MLCS. I sure can not speak for them, just speak about them, but I've always felt that they treated me fairly.
By the way, that center mark is probably for turning the shape out of a bar of steel, not grinding or balancing but I would have to see it to be sure. If the CNC (computer numerically controlled machining certer)is running right, why would you need to balance much. I believe that some centers get drilled and tapped for the bearing screw and are therefore lost to view, but they are/were there. Let us know how this comes out, please.