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To: techdiver@aquanaut.com
Date: Sun, 10 Feb 2002 00:23:00 -0500
From: Wendell Grogan <wgrogan@dc*.ne*>
CC: techdiver@aquanaut.com, cavers@ca*.co*
Subject: Re: Decompression DIR style
This whole deep air thing strikes me as being as stupid as AAA saying
that the best way to learn to drive safely is to always drive drunk. 
That way, when you actually are sober, you'll be a better driver, and
when you drive drunk, you'll be average.
Wendell

George Irvine wrote:
> 
> Scott, I agree with you - that air nonsense is one of the biggest problems
> in diving. Certainly, it is a sham for anyone who pretends to be teaching
> tech diving to say anything as stupid as that. In addition, this yap out of
> instructors makes students think there is some value or toughness to diving
> air, and that mentality kills. This is why I so bitterly hate idiots, and
> love to smash them into the dirt at every opportunity. They kill other
> people with stupidity.
> 
> High partial pressures of nitrogen cause the red cells to become rigid and
> get hung up in capillaries or damage them. The response of the body to this
> and the immune response tend to close off the area . Anyone ( but a dive
> instructor) can see what that means for decompression.
> 
> In addition, it is so funny to me that these half wits think they are "ok"
> on air since studies show impairment relative to the norm at even 40 feet on
> air. The chess experiments are the funniest, where the guy outside the
> chamber keeps beating the guy inside the chamber at 40 feet, no matter who
> is in which position.
> 
> We found in the WKPP that mistakes were being made on nitrox and air at
> relatively shallow depths, so we outlawed the use of nitrox as a diving gas
> or air for any reason. We also found inadequate decompression results from
> air and nitrox at deeper depths. There is no decompression that works with
> air.  We use helium in most mixes. If you look at cave diving death
> statistics among "trained"cave divers, you will see the preponderance of
> 100+ foot dives where nobody seems to know what went wrong.
> 
> We in the WKPP know what goes wrong, so we don't do it.
> 
> -----Original Message-----
> From: ScottBonis@ao*.co* [mailto:ScottBonis@ao*.co*]
> Sent: Thursday, February 07, 2002 4:03 PM
> To: trey@ne*.co*; techdiver@aquanaut.com; cavers@ca*.co*
> Subject: Re: Decompression DIR style
> 
> Hi Trey,
> 
> As per your request, my favorite stroke comment about mix is an instructor
> saying "I dive to 165 ft. on air all the time and do just fine.  So if you
> set the END of your bottom mix to 165 ft., you'll have no problems and you
> end up saving the cost of the excess Helium needed for an unnecessary lower
> END."
> 
> Take care and dive safe,        Scott
> 
> Some weeks it's just not worth the effort to gnaw through the restraints and
> scramble up out of the pit.
> 
> In a message dated 2/6/02 8:20:34 PM, girvine@be*.ne* writes:
> << Most of you are familiar with the worst of them, which is "get off
the
> 
> helium as fast as you can". If  dive instructor has told you that, you are
> 
> dealing with the worst kind of idiot. There are many more like this, but I
> 
> am having  tough time shifting gears to what is wrong from what is correct.
> 
> Maybe some of you could bring these things up , since you are exposed to
> 
> them all the time. I only hear dumb things on lists, obviously the people I
> 
> dive with are of a different level of understanding.
> 
> -----Original Message-----
> 
> From: Dan Gibson [mailto:dgibson@b-*.co*]
> 
> Sent: Wednesday, February 05, 3603 12:44 AM
> 
> Subject: Re: Decompression DIR style
> 
> To: techdiver@aquanaut.com
> 
> George mentioned something about helium and old wives tales.  Since I don't
> 
> know enough about this subject and probably have not heard all of them,
> 
> could they be listed like other things (Baker's Dozen and Why we don't do
> 
> bounce dives)?  I think it would be helpful to know when you come across bad
> 
> info.
> 
> Thanks,
> 
> Dan >>
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