I think it's time for a story.
After having dived on and off for a time without being certified, I decided that it was time to get certified. I got certified...then AOW, a bunch of specialties, then DM and the next thing you know, I was an instructor.
At the time, I had little reason to question the standards. I say, I had "little reason" because I did have some reason but hadn't connected the dots yet.
Some of those "reasons" that I didn't yet recognize...While I was a DM candidate I went for a dive with a newly certified diver, another DM and an instructor. The newly certified divers was overweighted, trimmed head up and had a buoyant camera that the instructor had clipped to her consol. The DM was way ahead of us and the instructor was above us having ear trouble. The new diver was getting a bit deep so I signaled her to watch her depth. When she stopped kicking to look for her consol she sunk like a rock and the fun started. That was my first time pulling a screaming scratching wild cat up from 65 ft.
Somewhere in the same time period, maybe a little before or a little after, I don't remember, my wife and I were on a night dive in a local quarry along a wall. My mask was leaking and fogging some so I decided to flood it, straighten it out and get it cleared. When I took a BIG deep breath to clear it...like we do when we're kneeling on the bottom, I shot up. Realizing that I was going up I blew and dumped. My wife followed me up but by the time she was headed up, I was headed down like a rock. Well, I landed in the silt but just decided that I had better stay there and just kneel while I got that mask thing straightened out. Once I did, I went looking for my wife.
My wife, who hadn't been diving as long as me but was AOW or rescue certified at the time had her share of similar incidents si I got thinking. I thought, why shouldn't a diver be able to replace a mask without having to be planted on the bottom? Even though I was a DM or inthe process of becoming one, I had never actually heard of anyone ever doing such a thing but it seemed like it should be possible. I was even starting to think it would be a VALUABLE skill. We spent the next dive doing all those beginner skills in shallow water but all while hovering. It wasn't that hard and didn't take very long but we came pretty close to getting hurt a few times and had gotten seperated LOTS of times before we ever even thought of giving it a try.
Then of course there were all the other courses that I DMed for where one diver was shooting up while another was getting buried in the silt but things were just starting to click. We would joke about how the class silted out the dive site but it never seemed to occure to anyone that it shouldn't be happening that way. ok, I'm a little slow.
continued...