----- Original Message -----
From: Richard Pyle <deepreef@bi*.or*>
> If you really wanted to be conservative, then you might drop maximum Pnarc
> to 4.0 atm, and require helium on all dives deeper than 100 fsw.  I might
> be in favor of that, as it is more or less the route I have taken on my
> own dives.
>

Richie, I hate to have to do this but, I agree with you. The limit should be
somewhere around this value. This is what we are practicing and it is good
to see others that are actually diving, adopting this same type of SOP. No
matter how you came about it. It is better for narcosis and for deco. While
I don't use air at all, an EAD of 100' is my absolute limit on narcosis. It
appears as those who do little or no deep/cave diving are the ones who are
consistently pushing the limits. Those of us who are consistently diving
every week have already figured this one out. It is a shame that those who
give the advice have not come to the same conclusions.

Chris


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