truant:So, do you guys practice things when you get a spare moment?
Absolutely, whenver I can or remeber to. Sometimes we set asside part of a dive for this or if we get back close to the exit with extra air it's a good way to burn it off.
Be careful about springing an OOA drill on a unwarned buddy though.
Same is true for trying things I was not taught assuming it something I have seen done or got to study up on. Shooting a buoy, valve drills, stuff like that.
Pete