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Well, sort of. A set of steel 60's rigged in DIR fashion provide a level of
redundancy which can never happen with a single 120 with Y-valve or an 80
with a pony. But if you are really doing "rec" diving, this level of
complexity is not needed.

If you are doing "rec" dives in cold, poor vis at the deep end of "rec"
limits perhaps you should reevaluate what, exactly, kind of diving you are
doing. Perhaps you are a "tech" diver and don't know it, thus should
consider a true redundant system.

I really don't think that there is a fixed delineation between "tech" and
"rec". If you are doing dives in conditions which raise the anxiety level
and create the possibility that you may get in trouble from such conditions,
I don't think that the 130' rule is sufficient.

For example a 130' bounce dive in gin-clear, current free conditions with a
competent buddy off of a good boat is certainly "rec". But a 80' dive in
5ft. vis, 40F water and a strong current on a fishline enshrouded wreck
certainly is *not* a "rec" dive and should not be done with rec equipment if
you are a sane person. It is this kind of diving which is pushing rec divers
to do stuff like using pony's.

   Jim

> From: tgunther@co*.co*
> Date: Mon, 1 Nov 1999 08:19:41 -0800
> To: Jim Cobb <cobber@ci*.co*>
> Cc: Tech Diver <techdiver@aquanaut.com>
> Subject: Re: Newbie question
> 
> <<  Look, doubles are great.  The secret to enjoying diving is
eliminating the
> things which make a dive no fun. You get doubles, air is no longer an issue.
> You get a drysuit, cold is no longer and issue.  You get a reel and liftbag,
> getting lost is no longer an issue. You get a scooter and currents are no
> longer an issue. You make your own hangline and the hangbar fistfights are no
> longer an issue.  You get my drift?  >>
> 
> I like the way you succinctly phrased this, Jim.    Good job.
> 
> Are you suggesting that recreational divers who only go NDL and are only using
> a
> Pony as an extra measure of safety (ie, not to extend bottom time or go deco)
> would be better served by diving isolated small doubles than a single and
> Pony?
> 
> Tod
> 
> 
> 


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