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>
>There is no bias in the NOAA tables for
>"resting" deco, and this is obviously at
>odds with reality. Personally, when using 02
>I ignore the CNS clock, and always take air/
>bottom mix breaks. 
>
>You, I and countless others have run the CNS
>clock out past 1000% on deep air dives, and 
>decoed on 02, without problems, using air breaks.
>If this is possible, one could logically question
>the applicability of CNS clocks to resting deco,
>and whether air breaks play a more important
>role in 02 safety, along with constant vigilance.
>
>Rod.


Rod:

A thought you might want to consider is the use of CNS Clock "Half-Times".
This is what we are employing in Abyss to lower the CNS values during the
periods of lessened O2 exposure.

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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://abysmal.com/users/abysmal 

World Wide Web Site: http://www.emi.net/gulfstream/abyss/abyss.html
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