beanojones
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Who are these people that are diving with no SPG or J-valve? What boat or shop allows it? What instructor or guide would get in the water with someone so unprepared? Heck, you don't even hear about people doing this nowadays over on the vintage forum.
Not that this has anything to do with anything posted thus far in this thread.
What has been posted in this thread is this:
1. Divers should dive so as to prevent having to do things like CESAs from 100 ft.
- Divers should dive with buddies.
- Divers should dive with SPGs, and buddies, and use them.
- Divers should be doing some kind of gas management.
2. Divers should help other divers in line with their abilities, which means
- Divers should approach from the rear
- Divers should be able to free themselves from someone they are helping to protect themselves
However an instructor/DM/Guide is not just a diver, nor should they think of themselves as such.
What is completely different is the fact that there are lots of instructors who regularly dive with divers whose safety they are (like it or not) responsible for. An instructor/DM/Guide who doubts their ability to help someone underwater without having to resort to attacking the person in need should probably think of themselves as not a dive professional. Which is just fine.
Except when the thing under consideration used to be a basic diver skill albeit back in the day, it is absolutely mind bending that there are instructors who not only cannot do it, and have never tried it, but also cannot imagine there are those who can.
Now onto the question of who dives without SPGs or J-Valves, which again has nothing to do with anything so far in this thread, other than tangentially, in that people strated talking about the good old days before "those damn kids ruined diving for everyone". I neither advocate, nor recommend anyone ever dive without an SPG. It's a relic of how diving used to be done before people figured out how to dive. It's stupid, for almost all divers, and not really smart even for elite few.
That said:
In Hawaii plenty of people dive with no SPG (and no octo, and no inflator hose), and no J-Valve. They are neither diving with a guide nor a shop; the only thing a shop has to do with it is filling tanks. Because there is no big deal to it if someone is used to it, and it is much cheaper to outfit a bunch of tanks to be left underwater with attached first stages and second stages than a bunch of tanks each with a first, second, octo, SPG, and inflator hose. Those plastic backpacks mentioned? Not at all uncommon. Nowadays it is the scubapro style cam bands and not the big hose clamp looking tank clamp but it is still the plastic backpack.
My point is that an instructor is supposed to have skills well past a divers. I did not think it was strange that I did multiple CESAs from 100 feet for my DM course, because I knew that I would be doing this for a living and the idea of not being as capable as some divers despite being a dive professional struck me as being odd.
And this whole topic came out of someone who wanted to develop more confidence in deep diving,
http://www.scubaboard.com/forums/basic-scuba-discussions/456963-more-emergency-training.html
And this person was looking for a class where he would be harassed underwater. My personal take on most things is that jiriki is always better than tariki, and so I suggested an easy jiriki means (practice CESAs from 100 feet) to develop underwater confidence when diving deeper, because any tariki means (like taking a class where one is hassled) only continues the mindset of looking to others to get things done for oneself.
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