Could earlier U-class orders have kept T-class boats in the Far East?

The T class's long range and heavy torpedo armament suited Pacific operations, but its size and bulbous bow made it less suitable for confined Mediterranean waters. Britain nevertheless sent these boats to the Mediterranean when submarines were scarce early in the war. Earlier orders for larger numbers of U-class boats might have allowed more T-class boats to remain in the Far East. That counterfactual raises the possibility of massed torpedo attacks against the troop convoys invading Malaya and Singapore, as well as against Japanese warship groups. The T class served effectively across the war, but the Mediterranean was probably where it suffered its heaviest losses and was least suited to operate.