Would avoiding the construction pause prevent Operation Berlin?
Short answerProbably not, because the raid occurs before most of the additional KGVs are ready and while the earlier carriers are likely committed elsewhere.
NotesThe no-pause fleet is stronger by early 1941, but its growth is not instantaneous. Prince of Wales is available and Duke of York is only entering service, while Howe and Anson are still months away. Earlier carriers are likely committed to the Mediterranean after Taranto rather than waiting in the Atlantic. Operation Berlin can therefore remain broadly possible even though later German surface sorties face a much larger British concentration.