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Date: Fri, 17 Oct 1997 15:33:09 -0700
From: jc <polarbea@sa*.ne*>
Organization: POLAR BEAR, INC.
To: TOM.MOUNT@wo*.at*.ne*
CC: cavers@ge*.co*, techdiver@aquanaut.com
Subject: Re: Tech Diver or Tech Keyboard Operator
Tom Mount wrote:
>        snip 
> > If you remember I caught a lot of crap the first
> time I included the lowarance and Hydro in a mix course. 
>             snip

 Tom Mount


> 
> Tom, I remember it well.  I also admit that deep down I thought it was 
kind of unnecessary.  I realize now that I was wrong.  I am not trying
to say that a 150 or 200 fsw air dive is the kiss of death but rather
that the mix makes it a DIFFERENT and much more ENJOYABLE diving
experience as well as a safety enhancement.  I can honestly say that I
NEVER felt a buzz or impaired on any of the wrecks you mentioned. 
However, the only logical conclusion I can make is that in order for the
dive to be so much more enjoyable on mix there must be some degree of
impairment that the He
removes.    

Re Sunday, I'll watch the wind and call Jim Sat.  If he goes out I'll
most likely be there.

Joe
> >
> > Bill Mee wrote:
> > >
> > > Karen,
> > >               snip
> > >
> > > You will be amazed at the increase in your perceptive clarity while on
> > > trimix at shallow depths.  You will notice things that you previously
> > > have overlooked and will "see" objects and events in a different
> > > perspevtive. Cobber is correct on this one.  Thanks to the abuse of
> > > "deep air" and it's mistaken incorporation into the training agenda of
> > > socalled "technical" diving the practice of eads beyond 100 fsw will
> > > eventially become uninsurable.
> >
> > Bill this is undeniably true.  Having done MANY air dives in the 150 to
> > 200 fsw range on a weekly basis I too succumbed to the delusion that I
> > was not at all impaired at depth and that the lower ppn2's were merely
> > an overreaction to slam home a point. NOT SO!!!  The difference in the
> > ENJOYABILITY of the dive is absolutely astounding.  In a comparative
> > sense, doing these dives on air is like diving in a fog.  There is no
> > "BUZZ", and there is none of the  apprehension or anxiety you might
> > experience when your are noticibly "narced".  Your comfort level is way
> > up there.  BUT YOU MISS HALF THE DIVE.  Not the big stuff.  All the
> > little detail items that you would previously ignore suddenly become
> > interesting and relevant.  Also, your perception of time changes and the
> > bottom time that previously flew by seems to last much longer.  It is
> > easy and inexpensive to use a light mix for these shallower exposures
> > and they greatly enhance the safety and enjoyability of the dive.
> >
> > Where I previously reserved trimix for dives in excess of 220' (the
> > rational being that you will stay off the bottom so its probably only
> > a 200' most of the dive - more self delusion ) I am now using it on all
> > exposures beyond 130 - 140 fsw and find the diving much more enjoyable.
> >
> > Joe Citelli

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