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Date: Thu, 16 Nov 95 09:49:55 -0500
From: Carl Heinzl <cgh@ma*.ai*.mi*.ed*>
To: kens@uf*.ed*
Cc: adamg@di*.co*, techdiver@terra.net
Subject: Mares Abyss

Ken and Adam,

I have two Odins, and a USD SEA.  I've dove with Sherwood, Mares,
Zeagle, Scubapro, and probably a few others, many of them are
unnotable, not bad, not outstanding (the TEK50D Severe being one that
stands out in my mind as a VERY nice reg as is the G250).

The Odins need to be serviced by a *competant* person (I get the
feeling that more people proclaim to be cometant than actually are,
but isn't that true with most things these days?).  One of the
maladies of these regs (Odins) is "fluttering" at shallow depths (this
sounds VERY strangs and if it has ever happened to you, you'll know).
After I had mine adjusted the 2nd time it went away and has worked
perfectly ever since.

I hang an Odin on my pony (some of you know that I just caught some
grief about that on rec.scuba).  When it's NOT in your mouth and in
the water you had best be sure that the switch is in the "-" position.
I once forgot this on a shallow dive and only had a 17 cu ft pony -
BAM it was emptied faster than i could get to it!  The Odins are well
known for flowing a LOT of air.  Some people say they breathe wet,
some say they don't.  When doing video I'm often in some rather
peculiar orientations and I HAVE noticed that it breaths a little wet
in some of these upsidedown, to the side, orientations.  I just suck
in slowly so as to not aspirate the water and when I right myself, the
water is gone.  The very real complaint has been made that they
breathe wet when scootering.  Since to date I have no experience with
scootering I can't address this, but it's from a very reliable source
(George).  So, when i start scootering, I'll swith to G250 2nd stages
on my Poseidin 1st stage.

The USD has been a very good reg, probably better than most people
give it credit for.  I've breathed it down to 275'.  Only once or
twice have I come close to it's limitations and that was on a dive
around 180' when I was swimming hard to get some video.  The old
"sucking air through a straw" feeling was quite strange - didn't
really bother me, I just lived with it until I was done with the
video, relaxed and let my air consumption return to normal.  SOME
people would panic under a situation like this, but, then again, most
people shouldn't be doing what I was doing at 180' either.  I figured
if worse came to worse I could stop, switch to my pony (with the Odin)
and take it easy).  I didn't have two Odins at that point.

The other disadvantage of the Odin is the god awful price for long
hoses (I paid $95 for a 7' hose!). As some people will point out
though, the 1st stage of these regs is easy to adjust and it is
preferred among people whose judgement I value (they prefer the
Scubapro G250 2nd stage).

That's my $.03 (adjusted for inflation)...

-Carl-

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