Agressive mentality And a very good radar/radio equipment compared with japanese , also the war theater was very different and a less aircraft pressure.
pacific ocean is huge compared with atlantic.

Yeah, they did bloody superbly for the first year or so. Meanwhile, the Kriegsmarine were clearly a bunch of no-talent ass clown fly-by-nighters :huh:

Just because the torpedoes were pieces of s**t and the doctrine completely nonsensical doesn't mean the actual submariners weren't extremely well trained.

Effectively making them exactly the same as all submariners regardless of Navy. Yeah, so it's a moot point as they're all the same.