What happens if Britain's battlecruisers at Jutland are replaced by copies of Hood in her 1920 form?
Short answerThe German First Scouting Group is likely destroyed by a much more powerful and survivable British force carrying about 80 15-inch guns with the Fifth Battle Squadron included.
NotesSix Hood-type battlecruisers and the four Queen Elizabeths of the Fifth Battle Squadron would concentrate eighty 15-inch guns. The German battlecruisers were capable ships, but they were not designed to absorb that combination of shell weight, speed, and protection. The British ships would also be much harder to sink than the historical battlecruisers. The likely result is a separate and heavily one-sided battlecruiser action rather than the historical sequence at Jutland.