Could Rodney have taken the same approach to Hood and Bismarck if Bismarck's guns could not destroy her?
Short answerA faster Nelson class might have changed which capital ships were available, but that depends on earlier design and modernisation choices.
NotesA modest speed increase might have made Nelson and Rodney more useful fleet units and reduced reliance on Hood, Renown, and Repulse. The proposed 28-knot design remains a counterfactual, since it depends on accepting a different balance of armour, displacement, and machinery during the treaty era. Faster Nelson-class ships could also have encouraged similar work on the Queen Elizabeth class. An early design decision can determine which capital ships are available decades later.