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We have learned from the list that 80/20 is a "stroke mix", and that we 
should deco at no shallower than 6m (20ft) to "open our oxygen window".

I notice that this just about doubles the CNS loading on the dive profiles I 
do. So I guess air breaks are in order. (Assuming one has any air to 
breathe)

If you intend to deco at 6m (20ft) on O2 it doesn't take long to get to 100% 
CNS by NOAA tables.  Similarly your CNS drops by 50% in 90min so a 5min air 
break is going to do zip to reduce your CNS %

So what is the deal ?

How do we factor in the CNS affect of air breaks on 100% O2 deco ?

Do we ignore the CNS clock for deco ?


Guy


========================================================================== 
 ,-_|\   Guy Wittig                                         wittig@us*.ne*
/     \  
\_,-\_+  <- last seen here                               Sydney, Australia
     v   
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