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Date: Tue, 23 Jan 1996 04:37:41 -0800
From: "George M. Irvine III" <gmiiii@in*.co*>
Subject: RE: re New OMS isolation manifold
To: <Tennantm@ao*.co*>, techdiver@terra.net
Cc: ir002538@po*.in*.co*
any problems they may cause] .  OR are they just some new contraption someone
came up with that is more likely to get you into trouble than make things
easier.  

Anyone care to bat around some Pros and Cons on this ?

Thanks 

  Yes - my opinion is that if you wear the right drysuit, the
TLS 350 with the right insulation (C-4 thinsulate), inflate with
pure argon, and have your gear rigged properly, there is no reason
you can not reach your valves to turn them on or off. The positioning
of the shoulder straps relative to the position of the tanks on the
backplate determine the postion of the valves.

   Attempts to use heavy neopreme suits with insulation are a waste:
they compress at depth, providing little thermal protection, and then 
expand shallow creating a buoyancy problem. Using bulky , layered 
insulation of the wrong type, or more insulation to offset the 
wrong inflation gas just adds insult to injury. 

    Invariably, barring some pyhsical deformity, those who have trouble
reaching valves are those who have convoluted their gear to an atrocious
level, usually compensating for one mistake by adding anouther. We
see this all of the time. If you can't reach your valves, take up 
golf. - G

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