In some ways similar to our own navy before NATOPS. Every squadron and every air group had their own tactics, procedures, and communications protocols, which had to be learned and relearned with every transfer. But at least in USN, these transfers were frequent enough to engender a certain amount of mental flexibility. Not so in the Japanese system, where crewmembers tended to stay with the same ship/air wing/squadron indefinitely. Given the lack of electronic communication, and the use of signals, being on the same page would be crucial to tactical success.It's unbelievable to me how they would leave their most modern carrier (close enough) and Shokaku's planes and veteran crews behind because the they never trained together.