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Date: Wed, 20 Sep 1995 11:08:50 -1000 (HST)
From: Richard Pyle <deepreef@bi*.bi*.Ha*.Or*>
To: Anthony Martinez <Anthony_Martinez@cc*.ss*.nm*.go*>
Cc: techdiver@terra.net
Subject: Re: Re[2]: DCS and injury sites

> Does this include situations where one might still have to breathe a mix
> containing He? I've always assumed that getting off the He asap was the
> best course of action. - Tony

From a compartment-based perspective, at first galnce it seems good to get 
off He asap, because it's getting into your body much faster. But I'm not 
at all convinced that the compartment-based perspective is the best one.  
The bubbl-based perspective is much more consistent with what I have 
learned from my own experience about the importance of deep stops.

I can't say much about the value of deep stops on helium dives (where some 
helium-mix is breathed on the deep stop), because I've never had any DCS 
or Proto-DCS symptoms after helium dives, and I've never done a helium 
dive without also doing deep stops (i.e., nothing to compare). Maybe those 
two facts, when considered together, suggest something?

Aloha,
Rich

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