Barracuda before Spearfish

How would Spearfish compare with Avenger in this carrier scenario?

The more relevant earlier aircraft is Barracuda, which would enter service before Spearfish.

The brief answer corrects the aircraft comparison rather than treating the later design as automatically available. It keeps the counterfactual grounded in what the Fleet Air Arm could plausibly field at the time. Barracuda belongs earlier in the service timeline than Spearfish and is therefore the relevant aircraft for the scenario being discussed. That chronological correction prevents a late design from inflating the capability of carriers operating in the earlier Pacific war.