lower level was preferable because cannon operation required a good deal
             of space due to recoil, and lurching cannons were dangerous obstacles to crews working the sails on the
             main deck. However, these lower piercings were difficult to make after the ship was constructed and
             affected the structural integrity of the ship itself. It was much easier to piercing the sides of the
             ship on the main deck, because all it required was a simple!
             U-cut. In fact, many captains who needed to rearrange the placement of their cannons during battle
             ...