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Date: Thu, 20 Jun 1996 07:19:54 -1000 (HST)
From: Richard Pyle <deepreef@bi*.bi*.Ha*.Or*>
To: Carlos Arruda Accioly <caccioly@ma*.ri*.co*.br*>
Cc: techdiver@terra.net
Subject: Re: Explanations of things that go bump in the night
On Sat, 15 Jun 1996, Carlos Arruda Accioly wrote:

> Rich,
> 
> Why don't you? I'd guess you keep your ppO2 so low that it ceases to be 
> a problem. Is that so?


No.  I keep my PO2 at 1.4 for the whole dive, which is a greater O2 
exposure than most OC divers get.  I don't have time to cover the entire 
rationale for why I don't bother calculating CNS% clocks, but suffice it 
to say that, if you understand how far-off deco schedules are from 
physiological reality, I am convinced that the CNS% concept is about 
100-fold further off.  I don't disagree with the practice for training 
agencies - it only adds another level of conservatism.  But in a system 
where chaos is the rule, I prefer to keep my oversimplifications to a 
minimum.

Rich

> 
> Cheers,
> 
> Carlos    8^)
> 
> 
> 
> >> On Mon, 2 Oct 1995, Ronnie Bell wrote:
> >> 
> >> > In light of your post remarking on how people should not just foist a 
> >> > "standard" on us but rather explain the whys and wherefores I like to
ask 
> >> > you and the list at large the following question:
> >> > "Exactly how do you use CNS clock values in your dive planning?"
> >
> >I do not use it at all in my dive planning.
> >
> >Aloha,
> >Rich
> >--
> >Send mail for the `techdiver' mailing list to `techdiver@terra.net'.
> >Send subscription/archive requests to `techdiver-request@terra.net'.
> >
> >
> 
> --
> Send mail for the `techdiver' mailing list to `techdiver@terra.net'.
> Send subscription/archive requests to `techdiver-request@terra.net'.
> 

Richard Pyle
deepreef@bi*.bi*.ha*.or*
*******************************************************************
"WHATEVER happens to you when you willingly go underwater is
COMPLETELY and ENTIRELY your own responsibility! If you cannot
accept this responsibility, stay out of the water!"
*******************************************************************

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