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Date: Wed, 17 Dec 1997 22:40:24 -0800 (PST)
To: Hidetaka Mizohata <hmizoha@bg*.bg*.ed*>
From: Jeremy Downs <dcrco@jp*.ne*>
Subject: Re: Dry Suit Diving.
Cc: techdiver@aquanaut.com
H-
It's really simple, done your entire gear configuration with only about 500
psi in your tanks. Empty both your drysuit and bcd completely, then slightly
move your arms to steady yourself in the water at eye level then slowly take
a normal full breath (not huge just normal), slowly stop your arms, hold the
breath, relax. You should stay right at eye level in the water while holding
a normal breath if weighted properly. This is the basic bouyancy check
taught in most basic classes but it is rarely taught properly to the level
necessary. Most people mistake the slight momentum generated by taking that
breath or stopping finning and overcompensate with lead (or they take too
big of a breath). Allways remember to relax and give things a chance to
settle. Most people do all this and then run back and add 5lbs for good
measure, don't do this. If you have too much lead then you cause all kinds
of problems. Many lazy instructors typically overweight their students
because it is easyer to control them during class and it ends up never being
corrected. After this you should be able to do your 10' stop while breathing
normally with minimal gas. I know it sounds like common information but pay
attention to the more subtle points that are rarely implemented properly. 

Take about four hours or more in calm shallow water to play with this, focus
on controlling your breathing, perfecting your hovering skills, mental
concentration, genuine relaxation, and dropping small increments of lead.
You will find that you will be able to lose even more lead, your skills will
drasticly improve, you will be more relaxed on future dives and your RMV
will drop drasticly. This session will probably be one of the best things
you can ever do to improve your overall abilities and relaxation skills. I
also recremend you continue such sessions once in a while for good measure.
The shallow water (<10') is important since this is where the slightest
imperfections are magnified.

Now I'll put in an exception to avoid the flames and confusion generated by
my last suggestion - I don't dive cave or do the really extreme stuff so
this may not be the correct procedure for such diving. Although the skills
perfected here can't hurt.

At 12:21 AM 12/18/97 -0500, Hidetaka Mizohata wrote:
>Dear Jeremy:
>
>>You do have to have a genuine clue about proper weighting to begin with
>>though (and most people really don't).
>
>Would you care to elaborate on this for me? How does one go about properly
>weight him/herself? I would like to know if I have had a clue.
>
>Sincerely,
>
>Hidetaka Mizohata
>mailto:hmizoha@bg*.bg*.ed*
>
>
>
>

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