Why Italian torpedoes avoided some environmental failures

Did Italian torpedoes have fewer wartime problems because the navy usually fought near its testing environment?

Yes, operating conditions helped, although Italian submarines still encountered torpedo problems in the North Atlantic.

Weapons tested and tuned for Mediterranean conditions were less likely to encounter the large environmental mismatch that harmed some other navies' torpedoes. Italy also maintained international deployments and testing experience during the interwar years. That did not eliminate defects, especially when submarines operated in the colder and rougher North Atlantic. The exchange shows why weapon reliability must be judged against both engineering quality and the environment in which the weapon is used.