Here is one thought to consider but perhaps not on your chart.
Its a question perhaps we all asked ourselves and answered in some form.
Are you a diver taking photographs or a photographer working underwater?
Recently, I was doing the Kona Manta night dive. Its all controlled by others. You attend, sit with your group, take photo's as the event unfolds. There is very limited ability to control many of the things Alex M. points out. I was a diver taking photo's. I loved it, it was a blast, family has/will enjoy the photo's as perhaps some will here when I get to processing a few. But I was certainly not much in the way of a photographer working underwater. They are good vacation images but not magazine publication images.
I recently read a trip report about a red sea photo class given by Alex M. There was considerable planning, off camera strobe setups, etc taking place with that group of the course of a week. Those were photographers working underwater.
Nothing wrong with being either type of person with the camera but there is quite a difference between the approach, thinking, goals, etc.
Not certain how that fits your chart or presentation but its food for thought.