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From: "Mike" <mwallace@ro*.co*>
To: <techdiver@aquanaut.com>
Subject: Re: Nitek3, Nemesis IIa Warts and All
Date: Fri, 8 Jan 1999 21:32:57 -0600




:In fact they are not the same, as the computer algorithms seem
to be
:overly conservative, presumably for liability reasons, and will
not
:generate the deep stops, so these have to be added manually.


I'll agree that most dive computers are more conservative that
generated tables but they also don't prevent you from doing the
deep stops. The Nitek3 will generate stops as deep as 90fsw and
the penalities for doing the short deep stops don't add up to
much more time on the 20/10' stops.



: I have a
:big problem with blindly accepting ceilings and stop times from
an
:electronic device in this sort of environment.

What's the difference between accepting the computers ceilings
and your table generated ones?



:Dive computers make it
:easier for persons to get in the water without properly planning
the
:dive, and to wreak havoc on their physiologies with all sorts of
weird
:sawtooth profiles.

Agreed that they make it easier to do the dive without as much
deco planning but I've seen just as many sawtooth profiles in
table divers as those with computers.


: Plus, if you and your buddies do not own the same
:model of computer, whose profile do you follow?

Obviously the more conservative of the two for the deco
obligations.



:There are subtle
:differences in the algorithms used in all of these things, and
the more
:"conservative" it is, the more likely the shape of the curve is
:complete nonsense.

They can make for some long hang times, or shorter depending on
the computer. One thing I don't like is that most of them
penalize you if you prefer to do your 10' stop at 15'.



:Tables can not cease functioning, and so would seem
:to be the better alternative.  Admittedly this does take a
little more
:time and effort, but then this goes back to OW1 - Plan the dive,
dive
:the plan.

Agree that tables won't cease to function on you but not
convinced on their being the better alternative.

My .02

Mike



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