At 02:25 PM 31/10/2002, EANX@ao*.co* wrote:
>Scott
>
>The use of FFM below 300 feet is a common occurrence for most commercial 
>divers and technical divers who need the use of U/W communications to work 
>or direct projects. They are also used commonly in very cold water just to 
>help protect the face.
>
>Yes FFM use more gas, but typically just because of talking. I have 
>noticed that if you do not talk they really do not use much more gas than 
>a standard regulator.
>
>FFM can be used very safely with a single switch gas block where each gas 
>has to be manually snapped in.   This prevents accidental gas switching at 
>depth and is really no different than switching a regulator. All stages 
>only have to carry one extra quick connect hose along with there second 
>stage and 6 inch pressure gauge. Of course a small scubapro mask has to be 
>carried in the case of a primary regulator failure.
>
>I would assume you do not need to talk to anyone underwater or dive in 
>extremely cold water so a FFM is not for you. As for me, directing my 
>photography light holders or video production divers is a thousand times 
>easier and waste much less time if I can communicate directly.


Curt, I find a storyboard, a briefing, and hand-signals work
just fine for the lighting guys now everyone has enough
helium in the mix. Before that it was like herding a bunch
of drunks across a freeway.

The only person with whom I need to communicate with any
degree of precision beyond hand signals is my cameraman, and
again, the helium, the storyboard, and the briefing cover
70% of the work, hand signals cover 20%, grabbing his tanks
and turning or swimming him covers 5% and the remaining 5%
is covered with the aid of vgorous blows to the back of the
head and snappy, to-the-point slate messages such as "Shoot
wide or die." etc.

>Plus my face gets bad freezer burn when I am diving in 36 degree Lake 
>Superior water.

I went in 10 degree C water once but got out shortly after.
Do the Swedish Brothers use full face masks?

yours

billyw
director bdi productions



>Curt Bowen
>Publisher Advanced Diver Magazine
>
>
>
>
>In a message dated Thu, 31 Oct 2002 00:47:32  Greenwich Mean Time, Scott 
>Hunsucker <shunsucker@co*.ne*> writes:
>
> >
> >  Has anyone actually taken the time to look at the new
> > products on the dive-rite site? Can anyone actually tell me why
> > they have something as stupid as plastic buckles on spring straps?
> > The point of spring straps is to eliminate the failure from the strap,
> > and plastic buckles increase the chance of failure.
> >
> >  Why does the world need swiveling double-enders?
> >
> >  Is it really a good idea to have a FFM on 300' dives.
> > They claim the performance of their new FFM and reg gets better as
> > you get deeper. You guys do realize that FFM use more gas and
> > eliminate the ability to switch regs? Oh I forgot, the mixing
> > manifold to solve what should be a non-problem!
> >
> > Why?
> >
> > Scott
>
>
>
>_______________________________________________
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>Cavers@ca*.co*
>http://www.cavers.com/mailman/listinfo/cavers

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