The lack of buddy checks was one of the first things that bewildered and upset me, when I finished OW and began my AOW class. My buddy was often my instructor, but we never did checks. (His explanation, later on, was that after all, he was watching me and checked out everything, so it wasn't needed.) I loved the emphasis on having a dive plan and doing buddy checks that I got in my DIR training. To this day, I'm considered a bit of a PITA about it, even by my DIR friends. (Kathydee asked NwGratefulDiver, "Does she always do this for a 10 foot reef dive?")
I have felt pressure on occasion to rush my checks, or omit them, because the boat crew was in a hurry or other divers were making fun of us. An instructor on a boat in Moorea said, "This is going to be a night dive by the time you guys get through!" But my dear friend and role model, KMD, stood up to a DM in Cozumel about this, and gave me a good example to follow.
It was very nice, on our South Pacific dive, to have other divers come to us after a couple of days and say, "We saw what you guys were doing, and it seems like a good idea. Can we bogart your checks?"
Dive Plan: Goals, Unified team, Equipment, Exposure, Deco, Gas, Environment
Head to toe equipment check.
Every dive. Everywhere. With everybody. It takes very little time, and saves an awful lot of inconvenience, aggravation and stress. Every time I get intimidated into omitting it, I pay for it by ending up with something awry.