There is no gear requirement for doing drills. Even if you do not have a long hose you can still practice air shares. Of course you could pickup a long hose at the LDS
For Mike it does not make a difference what hose length you have.
Buoyancy, air shares, hand signals, cutting tool deployment, rig don and doff (At least at the surface), predive planning, post dive debrief, the list goes on and on...
Mike G. step away from the camera! Seriously, do you feel you are a good enough buddy at this time to task load with a camera taking away over 50% of the focus on your buddy? Is your buoyancy spot on? Are you back kicks strong. Taking pictures requires both good buoyancy and strong back kicks, so you do not crash into the reef.
I happily quit taking photos for well over a year and focused on improving my diving. I improved an incredible amount during that time. My point is we all need to gain experience and work towards goals of photography and video, but not jump into them before we have become excellent divers. Do you have every skill down to a science? I still feel I have plenty to learn, and there isn't much that hasn't been photographed or won't be there later to take pictures of in the future.