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Date: Sat, 26 Oct 1996 21:01:11 -1000 (HST)
From: Richard Pyle <deepreef@bi*.bi*.ha*.or*>
To: gmiiii@in*.co*
Cc: techdiver@terra.net
Subject: Re: Deep Stops

This is what I meant by the "Signal to noise" thing.  Chris said "when 
following the model" when he was talking about the longer shallower 
stops.  I've had many long conversations with him about deep stops, and 
he understands them. Hence, your senseless bashing is just noise.  NOBODY, 
not even you, advocates deep stops as strongly as I do.  I was doing them 
ten years ago.  I don't know why they work - I know that the evidence 
points to bubbles, but I'm not about to fall into the same trap that 
weenies who religeously follow their compartment models did by assuming we 
"know" something that we do not.  Yes, deep stops should be "required" 
stops, just as "safety stops" from no-D dives should be considered 
"required" stops.  It's probably the same underlying principle for both.

Chris, a more constructive suggestion is that yes, compartment models can 
very easily give better shapes to deco profiles.  All you have to do is 
lower the M-values of the faster compartments. Yes, this will shorten 
"no-D" time, but as you well-know, there really is no such thing as a 
"no-D" dive.  What it will do for many traditional no-D profiles is add 
some short shallow stops, which look suspisciously like "Safety stops".

Rich

>  Chris , what you have writen below is baloney: deep stops ARE required, they
do 
>  NOT cause a need for longer shallow stops. Get it right, or get it off of   

> here. The correect version is that the alogithm you use does not adequately  
> describe the proper decompression, but for weenie dives, who cares. For real  
> diving , you need to find out WTF you are talking about, or get out of the   
> business. I never want to see anything this stupid out of somebody who holds 

> themselves up as an expert in public again. Capice?- George Irvine
> 
> >"Deep Stops" to augment their decompression profiles following more extended
> >technical exsposures. As most of you will know, Tissue Based algorithms do
> >not lend themselfs well to artificial insertion of additional non-required
> >deco stops, and adding these stops often increases future decompression
> >obligations at shallower depths (when following the model).
> 
> >Christopher M. Parrett, President
> >Abysmal Diving Inc. 6595 Odell Place, Suite G. Boulder CO, 80301 USA
> >
> >Makers of ABYSS, Advanced Dive Planning Software.
> >
> >Phone: (303) 530-7248  Fax:   (303) 530-2808
> >
> >File Transfer Site:  ftp://ftp.abysmal.com/pub/abysmal
> >World Wide Web Site: http://WWW.ABYSMAL.COM
> >~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> >Rule #1   If We Don't Take Care Of The Customer.....Somebody Else Will.
> >"Its not so much what we do, but how we do it that really matters."
> >
> >--
> >Send mail for the `techdiver' mailing list to `techdiver@terra.net'.
> >Send subscription/archive requests to `techdiver-request@terra.net'.
> >
> >
> 
> George M. Irvine III
> DIR WKPP
> 1400 SE 11 ST Ft Lauderdale, FL 33316
> 954-493-6655 FAX 6698
> Email gmiiii@in*.co*
> 
> <----  End Forwarded Message  ---->
> 
> 
> George M. Irvine III
> DIR WKPP
> 1400 SE 11 ST Ft Lauderdale, FL 33316
> 954-493-6655 FAX 6698
> Email gmiiii@in*.co*
> 
> --
> 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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