That is because the Germans used it as all-weather fighter-bomber with more heavy load, in different airspaces, with different weather and terrain, as opposed to the initial, more air-superiority/interceptor concept. And had a different way of training their pilots. In masses. "Wo gehobelt wird fallen Späne. Ein bisschen Schwund ist immer da."
Other european airforces using them were more lucky, IIRC.
That aside, they could be seen as the exported rests of the bargain-basement of the MIC of the USA, when the USAF/Navy already had better options(seen as a whole weapon-system, not a few speed/climb/altitude records(for the initial, only lightly loaded version) which won't matter in real combat).
Other european airforces using them were more lucky, IIRC.
That aside, they could be seen as the exported rests of the bargain-basement of the MIC of the USA, when the USAF/Navy already had better options(seen as a whole weapon-system, not a few speed/climb/altitude records(for the initial, only lightly loaded version) which won't matter in real combat).