If Hood disables Bismarck in the opening salvo

What changes if Hood cripples Bismarck with a lucky opening salvo?

Britain preserves Hood and the forces spent on the chase, while Germany may abandon major surface operations much earlier.

Hood and Prince of Wales avoid the damage and reputational consequences of the historical battle, while Vanguard still answers Britain's need for fast capital ships. Hood can enter the major refit that war had delayed, and Prince of Wales may receive a different later assignment. Destroyers, aircraft, submarines, fuel, and veteran personnel are not consumed in the pursuit of Bismarck. The cumulative saving matters across a long attritional war, and an immediate German failure may cause Hitler to lose faith in surface operations before North Cape.