 While these guns were considered an improvement by the Navy over that of the South Carolinas , their placement remained problematic as even in calm water , they were extremely wet and thus difficult to man . The forward guns were moved into the superstructure after sea trials . The casemate @-@ mounted secondary armament was one deck below the main deck and provided the majority of the complaints from shipping water from the forward positions and breaking the flow of the bow wave imparting extra drag on the design . 
