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In a previous message, Sean Creagan wrote:
> 
> John,
> 	I have a couple of flames for you.
> 
> You do not need a dual bladder BC when wearing a dry suit (period!!).  
> Your bouyancy should be maintained only with your dry suit and your 
> (single bladder) BC should be used only as a back up.  However, a dual 
> bladder BC is a good idea when technical diving with a considerable 
> amount of weight and using a WETSUIT.

Sean;
I disaggree with your opinion here. I use my wings for bouyancy rather than
my drysuit. I know that PADI teaches people to use their dry-suit, but
that is wrong and I can prove it.
If I am using my dry-suit for bouyancy, and I am hanging upside down looking
under a ledge, then a bunch of air rushes to my feet. That sucks.
I would rather just put enough air in my suit to get rid of the squeeze and
use my wings for bouyancy. This keeps my centre of gravity in a good spot
and makes my trim much better.

Incidentally, a PADI course director once told me that the only reason
they teach using the dry suit for bouyancy was because they didn't 
think most candidates on the course could deal with two sources of 
bouyancy.

-- 
Regards,
Andy W. Barclay.        andy@le*.ca*
UNIX Instructor Team Leader / Queensview Branch Manager
(pgp publickey avail at ftp.learnix.ca:/pub/pgp.publickeys.pgp)

It's not whether you win or lose, it's how good you
look playing!
   --David Lee Roth

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