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From: "Paltz, Art" <Art.Paltz@R2*.CO*>
To: Mark Dixon <jj@da*.co*>, Techdiver@aquanaut.com
Subject: RE: Jersey reel
Date: Mon, 25 Oct 1999 10:32:15 -0400
Scheduling is fine.  I think it causes a big problem on the repeat dive.  If
you have people on the boat doing a 20 minute no deco dive and another
person doing a dive that requires 2 hours tot in water, is the non-deco
diver going to want to wait an hour and 40 minutes to get in the water?  Is
the 2 hour total in water diver gonna want to cut his/her dive short?  I
don't think either diver is going to be happy.  This situation gets even
more complicated when you are taking into consideration the repeat dive.  If
the short bottom time diver pops to the surface at the same time as the deco
diver then doing a 2 hour surface interval gives the same issue as the first
dive.  The non-deco diver gets 3 hours and 40 minutes of surface.
 
Most of my diving is done in the 100 - 130 range and the boat is a mix of
beginners doing non deco (< 20 minute) times to people doing much longer
bottom times in the 60 - 80 minute range.  I'm usually somewhere in the
middle.  I give your beginners credit if they are comfortable doing a free
ascent under a bag.  Most of the truly beginners I know would probably have
trouble with this task.
 
Art.
 

-----Original Message-----
From: Mark Dixon [mailto:jj@da*.co*]
Sent: Saturday, October 23, 1999 1:16 PM
To: Techdiver@aquanaut.com
Subject: Jersey reel


I'm still not convinced about all of this Jersey reel stuff - sounds
overcomplicated to me.

1)    When diving deep mid channel wrecks in the UK we normally just bag off
using the technique stated by Sean Stevenson.  If the boat skipper
co-ordinates water entry times with bottom run times then all the bags will
hit the surface at about the same time and therefore there is no problem
following the decompressing divers.

2)    Most UK wreck divers use an auto inflate deco buoy which is a separate
piece of equipment to lift bags.  This piece of kit will not capsize and
deflate (thinking divers also carry a redundant deco buoy!).

3)    On a long hang with the cave reel I find it best to clip the locked
off reel to my top D-ring and just float along at 6m while neutrally
buoyant.  This takes any tension off your arm Only risk here is getting
scooped up by a passing ship.  Lets just hope that those topside would deal
with this.

4)    Only times when this falls down is when the target is very deep(80m+?)
and bail out scenarios (i.e. loss of deco or travel mix) require a return to
the shot line to ascend to staged spare gas - normally on a detachable deco
trapeze.  This limitation clearly also applies to your jersey reel method.

Just a couple of thoughts.  I am a DIR diver operating in the UK and with a
couple of amendments to reflect local cold water conditions and equipment I
have found it has greatly simplified my diving configuration (before doing
my full cave ticket with Ted Cole of WKPP I was as sceptical as hell!).

However, I agree that it is just a philosophy and that no amount of
haranguing or insults is going to make other people change their minds.  We
can see this in the UK with the recent "hoo-hah" over the Lusey 99 trip.
All of the bile directed from this list has only served to close people's
minds even further on this side of the pond.  What was forgotten is that the
people on the Lusey 99 trip are excellent adventurous divers many of whom
have developed UK technical diving in leaps and bounds over the past few
years.

We need a bit of respect for each other - at the end of the day we all dive
for fun.

Regards

Mark Dixon



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