To put it bluntly, this is amazing bullshit!  Sorry to deviate from my 
normal form but this is getting really deep.  Steve is right.  If someone 
is saying, in training, that they cannot use 100% because of "dry throat, 
discomfort in their lungs, and other side effects" then they are suffering 
from some sort of psychosomatic problem, i.e. "the IANTD and TDI manual 
said this is bad for me, so I must be having these problems", or they are a 
physiological abnormality and should not be in the water.  Training dives 
will not last long enough for anyone to develop problems with O2, unless 
they are using some basterdized shit from the start.
    >90% of students are not able to maintain buoyancy to use 100%, so 
instead of not teaching them at a rapid rate and giving them time to learn 
the basics, lets get them to use a mix that is not optimal, seriously 
flawed logic.  Granted one needs to be concerned about liability, 
especially in this law suit happy day and age, but would it not be better 
to teach the student slowly and correctly the first time than to milk them 
for money give them a card and send them off to die.  Do you know there is 
an instructor still teaching that will take you from OW to full cave in one 
week and in the very next week certify you for trimix?  Trailers can't be 
that expensive, why is this?
    1.6 is 1.6 is 1.6 is 1.6 . . . 1.6!  These people that you speak of 
that have to use 50%, if they use it at 70 feet they are still facing the 
same pO2 they would see if they were to use O2 at 20.  Sure one could 
speculate that "because of Y%of N in my mix, it counters the problems 
induced by X" but they usually don't dive anyway.
    The "cost" logic was flawed from the beginning and should not be used.
    Having 100 divers, man your numbers are off, make a statement may not 
be enough to make claims for 16 millions, but 1 out of 8 is better?  When 
are you guys going to see that there is so much more beyond just the WKPP 
that is interested in what we do?  I spend hours a month on the phone to 
everyone from the US Navy, to leading hyperbaric docs, to the Discovery 
Channel, people are interested in this because it works.  There is a better 
way than what has been shoved down everyone's throat because of fear and 
ignorance, what will it take for those that still cling to their days of 
glory to wake up and see this?
    It has been a rough day, but I feel better now ;-)
    I'll be back soon with my normal delivery and information.
Scott Hunsucker
At 03:57 PM 9/11/00 +1000, Steven Bliim wrote:
>Greg
>And 80/20 resolves these problems for all your students? What sort of
>profiles are these students doing that they need 100% or 80/20 as opposed to
>50% from 21m?
>
>Regards
>Steve Bliim
>
>-----Original Message-----
>From: gzambeck1 [mailto:gzambeck1@me*.ne*]
>Sent: Friday, 8 September 2000 19:18
>To: Steven Bliim
>Cc: Techdiver (E-mail)
>Subject: Re: 80/20 deco
>
>
>Steve this is a really simple matter, when the student starts to complain of
>dry throat, discomfort in their lungs, and other side effects I listen.
>I used to deco on 02 at 30 ft all the time and still do.

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