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Date: Sat, 25 Nov 1995 09:59:56 -0700
To: Richard Pyle <deepreef@bi*.bi*.Ha*.Or*>
From: cherf@ci*.co* (Scott Cherf)
Subject: Re: manifolds & hoses (was Independant Tri-mix Bailout)
Cc: Jason Rogers <gasdive@sy*.DI*.oz*.au*>, techdiver@terra.net

At 3:54 AM 11/25/95, Richard Pyle wrote:

>This is something I've never really understood - why in the hell do
>people need crotch straps?  It's hard enough to crawl out of those
>friggin' shoulder straps (I prefer "Hawaiian Style" hooks) - why add more
>straps?  My rig never wiggled around - even with twin 100s plus two ponies.

The crotch strap is supposed to keep the rig from shifting up (down really)
when you're inverted.  I've never gotten inverted with mine off (I mean,
when I wasn't wearing the strap) so I don't know how necessary it is, but
judging from the pressure exerted by the strap, I'd say it was doing something.

I have one because it was recommended equipment.  Like the chest strap, I'll
probably need 50 to 100 dives with it to decide if it has real utility.
Pity us beginers, we're at the mercy of our teachers ;).

BTW, I don't keep it so tight that I have to loosen it to reach my valves,
I was just following Jason's original statement.  I keep it tight enough
to catch the rig if it shifts more than 2 or 3 inches.  I also don't
pretend to have the experience needed to argue the tradeoff between dual
independants and manifolds, I was just observing that turning off your
valves was not something that took a contortionist or a missing evolutionary
link.

Scott.

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