Would it be worthwhile to reuse triple 11-inch battlecruiser turrets on new heavy cruisers while up-gunning the battlecruisers?
Short answerProbably not. The cruisers would inherit a capital-ship rate of fire and threat profile without the protection needed to survive capital-ship attention.
NotesFitting two triple 11-inch turrets would give a cruiser capital-ship rates of fire without necessarily giving it capital-ship armor. Against ordinary cruisers, the slow battery could be a handicap; against battleships and battlecruisers, its conspicuous armament would make it a priority target. Reusing available weapons can distort a ship's tactical role when firepower, protection, and expected opponents are not considered together.