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From: <kirvine@sa*.ne*>
Date: Fri, 24 Dec 1999 09:39:01 -0500
To: Michael Waldbrenner <Michael.Waldbrenner@wa*.de*>
CC: techdiver <techdiver@aquanaut.com>, QUEST@gu*.co*
Subject: Re: SAMPLE DECO DIVE - 220 FOR 25
Mike, I do not do the deco list - that is strching too far my ability to
not pull the BFG and be done with it - I unsubscribed on day one, and am
out for good until they can get the difference between "knowing" and
"guesing" understood. Then we can talk. Also, when the high school math
students and the college freshmen who never did a dive in  their lives
and who will not graduate with enough math to do what I do all day long
for a living, and can take a seat and can shutthe hell up, I can start
to talk. Not going to happen. Techdiver has more people who I am
interested in reaching - those who dive. WKPP list is for the next
elvel, and we wil get to that soon.

Your question. No, this has nothing to do with "tiny bubbles" .It has
everything to do with what I said : you can not get out the last bit of
gas without dropping the pressure and that is the high risk gas since
you are 1) dropping the highest relative ata's of the dive, 2) you have
plenty of nitrogen or (other inert if it is a heliox all the way dive)
in your body to grow those bubbles, and 3) if you have a shunt, now is
the time you will get the big hit. This part of the deco is the only
part that you must not screw up. Oxygen bubbles hurt but absorb fast.

Michael Waldbrenner wrote:
> 
> >3) we "SIT" on the 70 foot stop for quite a bit longer than is
> suggested
> >by theory. The reason is we want to use that wide open oxygen window
> for
> >all it is worth down there to both clear the slate as much as possible,
> Whenever i am changing to EAN50 i am doing at least 3 Minutes there, no
> matter what the software says.
> I think 3 Minutes is ok to let the deco-gas "work" for me and i am
> already shallow enough not to take up N2 in 21m.
> I heard on short dives (like we discuss now) GUE just sticks to a minute
> ?
> 
> >5) slow final ascent - the last move up to the surface is one of the
> You come out of the water on O2 or Low-O2-Gas(trimix if not hypoxic?).
> This is the o2-bend versus "keeping-bubbles-tiny" discussion ?
> 
> Michael
> 
> Your email should be sent to the deco-discussion list too ! ( i would
> rather say instead of techdiver ;-) )

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