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Subject:RE>What do you think it was ?
Lawrence
[Stuff deleted]
found myself face down, feet going up slightly all this making it harder to
maintain depth precision unless I started finning a little. Then comes the
ascent to 9m and the switch to EAN80. At first this is OK, however I realise
I am not maintaining 9m all the time sometimes dipping down to 11m. By this
time I'm getting tired and am in a face down position due to the cylinder
pulling down.
On 80 % at 11m you where at a ppo2 of 1.68 - you your self said the dive had
been "stressful" - could you have had a build of of C02 due to trying to
right yourself ? + a free ascent( without benefit of a line) + the stress and
embaressment of loosing the SMB etc - As you say when you switched back to
air it apssed (lower ppO2) I think I'd agree with your proposal you where on
the edge of a O2 hit
Maybe move the deco cylinder from your front to a under shoulder stage type
rig - it will balance you better in the water
GD
Mail Address : graeme_davison@ne*.co*
BSAC : IANTD : NSS-CD
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