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Date: Fri, 01 Sep 2000 13:36:06 -0400
From: Guy Morin <xnet@vi*.ca*>
Subject: Re: 80/20 deco
To: Jim Cobb <cobber@ci*.co*>
Cc: Tech Diver <techdiver@aquanaut.com>

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Hi Jim,

Sorry to see you are giving way to the temptation of

foul language, too bad. Congratulations on keeping with

it though.

> So, this model you love so much, what makes you think it is accurate?

After checking the posts, I don't think I said that.

> Certainly the track record of this model sucks, or we would not have
> well-used chambers wherever there's water.

You are suggesting some other holy grail? It's hard to see any point

to this statement Jim, please be clear.

> And do you really think that the WKPP fellows would operate on a flawed
> model, doing hundreds of dives a year? You are insane if you believe that.

What I think about the WKPP doesn't matter here Jim. It is just as insane

to propose that divers do what the WKPP does without knowing what they

practice, and why. It really looks like you're making my point for

me here, so thank you.

> And "You are basically saying that it is ok to blow between 25% and 33% of
> your deco, according to what the algorithm specifies" what are you talking
> about here? I have no idea.

Gee, I'm sorry to hear that your memory, and/or reading skills have

deteriorated to this point, do you think it might be the result of

those profiles you are promoting? Actually, this might be some of

the legendary denial exhibited by many WKPP promoters. It looks

like a duck, sounds like a duck, it can't be a duck. Duck, what

duck, did you say duck?

> The gradient model requires that you start your deco earlier, it does not
> get you out of the water earlier on typical wreck bounce dives.

What is the point?

> As I said before, I nor anybody else cares how you care to torment your
> body, so don't get your panties in a wad.

What?

> All I know is that I get out of the water feeling better and ready for the
> next dive using gradient deco and 50-100 with air breaks. Since I have
> limited my bottom PP02 to 1.1 to 1.2 my lungs don't feel burnt during and
> after the dive. I admit to being 43 years old and not very kind to my lungs
> over the years, perhaps you young studs can rack up the damage and not feel
> it.

Glad to hear you are enjoying yourself, really.

> You assholes need to try this shit out before you poo-poo it. I have tried
> both and made my decision. You need to take the buckets off of your heads,
> you bunch of hypocrites.

Notwithstanding the fact that most would agree that the poo-poo'ing

was initiated by the 50/100 camp, this all relates to the statement

that the algorithms proved that 50/100 was better. Are we complaining

about the outcome of the point that you folks put out there?

Finally Jim, I never said that either was better, I merely

pointed out the flawed modeling, the obvious logistical

advantages of one over the other.

I too hope for better modeling, as do we all, I assume.

Ideally maybe some of these elements can be incorporated

into the models to make them better.

It seems to be a fact that Buhlman doesn't account for the

physical reality, and a lot of bright people are digging

in to find better ways. The models will get perfected, and

who knows where, or how the breakthroughs will come. It is

incumbent upon us to analyze every aspect of what we do to

help these models along. These stimulating discussions, for

better or for worse, are part of that process. By the way,

modeling is about detail, and a level of detail that is mind

boggling. We are talking about details here, and it matters.

The reality is also that it will be hard to discern what

works from what doesn't because we always make statistical

observations that are complex functions of many factors

that have nothing to do with diving.

--
Guy



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<!doctype html public "-//w3c//dtd html 4.0 transitional//en">
<html>

<pre>Hi Jim,</pre>

<pre>Sorry to see you are giving way to the temptation of</pre>

<pre>foul language, too bad. Congratulations on keeping with</pre>

<pre>it though.</pre>

<pre>> So, this model you love so much, what makes you think it is
accurate?</pre>

<pre>After checking the posts, I don't think I said that.</pre>

<pre>> Certainly the track record of this model sucks, or we would not have
> well-used chambers wherever there's water.</pre>

<pre>You are suggesting some other holy grail? It's hard to see any
point</pre>

<pre>to this statement Jim, please be clear.</pre>

<pre>> And do you really think that the WKPP fellows would operate on a
flawed
> model, doing hundreds of dives a year? You are insane if you believe
that.</pre>

<pre>What I think about the WKPP doesn't matter here Jim. It is just as
insane</pre>

<pre>to propose that divers do what the WKPP does without knowing what
they</pre>

<pre>practice, and why. It really looks like you're making my point
for</pre>

<pre>me here, so thank you.</pre>

<pre>> And "You are basically saying that it is ok to blow between 25% and
33% of
> your deco, according to what the algorithm specifies" what are you talking
> about here? I have no idea.</pre>

<pre>Gee, I'm sorry to hear that your memory, and/or reading skills
have</pre>

<pre>deteriorated to this point, do you think it might be the result
of</pre>

<pre>those profiles you are promoting? Actually, this might be some
of</pre>

<pre>the legendary denial exhibited by many WKPP promoters. It looks</pre>

<pre>like a duck, sounds like a duck, it can't be a duck. Duck, what</pre>

<pre>duck, did you say duck?</pre>

<pre>> The gradient model requires that you start your deco earlier, it does
not
> get you out of the water earlier on typical wreck bounce dives.</pre>

<pre>What is the point?

> As I said before, I nor anybody else cares how you care to torment your
> body, so don't get your panties in a wad.</pre>

<pre>What?

> All I know is that I get out of the water feeling better and ready for the
> next dive using gradient deco and 50-100 with air breaks. Since I have
> limited my bottom PP02 to 1.1 to 1.2 my lungs don't feel burnt during and
> after the dive. I admit to being 43 years old and not very kind to my lungs
> over the years, perhaps you young studs can rack up the damage and not feel
> it.</pre>

<pre>Glad to hear you are enjoying yourself, really.</pre>

<pre>> You assholes need to try this shit out before you poo-poo it. I have
tried
> both and made my decision. You need to take the buckets off of your heads,
> you bunch of hypocrites.</pre>

<pre>Notwithstanding the fact that most would agree that the
poo-poo'ing</pre>

<pre>was initiated by the 50/100 camp, this all relates to the
statement</pre>

<pre>that the algorithms proved that 50/100 was better. Are we
complaining</pre>

<pre>about the outcome of the point that you folks put out there?</pre>

<pre>Finally Jim, I never said that either was better, I merely</pre>

<pre>pointed out the flawed modeling, the obvious logistical</pre>

<pre>advantages of one over the other.</pre>

<pre>I too hope for better modeling, as do we all, I assume.</pre>

<pre>Ideally maybe some of these elements can be incorporated</pre>

<pre>into the models to make them better.</pre>

<pre>It seems to be a fact that Buhlman doesn't account for the</pre>

<pre>physical reality, and a lot of bright people are digging</pre>

<pre>in to find better ways. The models will get perfected, and</pre>

<pre>who knows where, or how the breakthroughs will come. It is</pre>

<pre>incumbent upon us to analyze every aspect of what we do to</pre>

<pre>help these models along. These stimulating discussions, for</pre>

<pre>better or for worse, are part of that process. By the way,</pre>

<pre>modeling is about detail, and a level of detail that is mind</pre>

<pre>boggling. We are talking about details here, and it matters.</pre>

<pre>The reality is also that it will be hard to discern what</pre>

<pre>works from what doesn't because we always make statistical</pre>

<pre>observations that are complex functions of many factors</pre>

<pre>that have nothing to do with diving.</pre>

<pre>-- 
Guy</pre>
 </html>

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