Hood's torpedo battery and hull safety

Was Hood's proposed five-torpedo broadside excessive, and where should its torpedo armament have gone?

He favors above-water triple launchers because they avoid vulnerable deep-hull spaces and preserve more continuous structural and flood protection.

Two above-water triple launchers with a workable reload arrangement would be preferable to submerged tubes. Deep torpedo spaces can flood, while hull penetrations interrupt the continuity of underwater protection. Keeping the launchers above the main strength girder also avoids creating a structural weakness where heavy equipment and openings are least welcome. Hood demonstrates why a weapon's location can matter as much as the size of its battery.