I don't fully understand that post, but I will say that it DOES matter where the center point (as interpreted by model viewing programs) is located within a ship. Its radius from that point determines warp hole diameter, and more importantly is the point around which the ship will turn. The colossus and Hatshepsut both are centered near their sterns rather than in the true center of the ships, so that they look like they are actually turning when they change heading (in theory). It is this gross offcentering, however, that causes the Colossus to behave like a baseball bat when it moves. Having it off to one side can goof up a lot if it has to move at any point.