Watching the episode, it's as if they'd all known each other for years. I guess that's ACTinggg!
In TOS with just a few lines of dialogue you got the idea that everyone knew each other pretty well from the get-go.
I wish they'd done that a bit more in STID. After all they were together for at least 6 months before the movie. Sometimes it looked like nuKirk and nuSpock had just met.