SDI and NASE only require this being done in the pool. However, they both require surface doff and don. Here's a student of mine doing a neutral doff and don in about 5 foot of water. She brushes the bottom only once.
"Brushed", "bounced".... That's the one I was talking about that I saw. Whatever you want to call it, it looked like the bottom was what stopped her from continuing to sink. Not knocking her. If that was an OW student, she did dang good on her buoyancy, really, I think.
But, the way it was done left me wondering "what was the point"? She was only controlling the rig by supporting it with her body. The videos of people doing it on their knees do not demonstrate any buoyancy control skill at all. But, they do demonstrate that they have separated the BCD from their body and have control of it with their hands.
I'm not an instructor, so maybe I am misunderstanding the point of the exercise. It seems like the point would be to be able to deal with problems the rig might have. E.g. something on the rig is entangled. Or the tank is loose in the strap. Or the 1st stage wasn't attached properly. Or whatever. Things that potentially can't be fixed by simply spinning in the rig and still supporting it with your body.
Your video demonstrates spinning in the rig and (pretty) good buoyancy control (for a beginner). It doesn't demonstrate separating oneself from the rig and then getting it back on. All the other videos I watched demonstrated separating oneself from the rig so that one could deal with any (fixable) problem that might come up. But, except for the one done vertically in mid-water, they don't demonstrate any buoyancy control.
As someone who is not an instructor, it seems like the ideal would be to demonstrate good buoyancy control AND the ability to completely separate from the rig in order to solve any (fixable) problem. No?
You didn't look hard enough.
Well, I was looking for a video of it being done underwater, not at the surface. Clearly, I misunderstood what was meant when people were talking about sitting on their tank. As evidenced by my question about whether it was being done mid-water or on the bottom.
My bad.