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View Poll Results: What Deco Algorithm Do You Use?

Voters
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  • Bubble Model

    3 3.03%
  • Varying Permeability Model

    10 10.10%
  • Gradient Factors – Even – Like 30/70 or 20/80

    49 49.49%
  • Gradient Factors – Favor Deep Stops – Like 20/70

    4 4.04%
  • Gradient Factors – Favor Shallow Stops – Like 40/80

    33 33.33%
  • Ratio Deco

    9 9.09%
  • Tables – Like Navy

    2 2.02%
  • Other - please explain

    4 4.04%
Multiple Choice Poll.
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  1. #101
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    Quote Originally Posted by Nitrogenius View Post
    That doesn't matter.. what matters is the conclusions drawn by Simon Mitchel and tissue analysis of actual Tec-Rec diving computer produced schedules (i.e. VPM-B +8 vs a correlating ZHL-16 GF schedule with less emphasis on deep stops)
    It is pretty obviousl were the differences in the "middle speed" tissues are and that the bubble model approach overall causes more decostress which quite likely might produce more DCS..


    Overall note that this is all much more relevant for Ocean Deep Bounce diving than it is for moderate depth long cave dives (and the resulting deco) and even less for deep caves with long bottom times..
    Long bottom times at great depth generate very similar deco profiles between bubble and tissue models anyways as overall saturation throughout all compartments gets fairly high..


    Not that I have experience in deep and long (only deep and short and somewhat shallower and long), but that is my take from playing around with the models and my conclusion drawn as why this little difference is happening
    You might want to revisit your deco software. That's not accurate.


  2. #102
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    Quote Originally Posted by Nitrogenius View Post
    Sure, but you had been arguing the same train of thought as he did in the past..
    Ah. I did not know that. Thank you.

    Edit - sorry, I typed inside the quote.

    Great minds discuss ideas; Average minds discuss events; Small minds discuss people. ~ Eleanor Roosevelt

    "If a small thing has the power to make you angry, does that not indicate something about your size?" ~Sydney J. Harris

  3. #103

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    Quote Originally Posted by PfcAJ View Post
    You might want to revisit your deco software. That's not accurate.
    Well then show where it is not accurate..
    I bet it is more of a dissimilar understanding of what really constitutes a big difference and what does not rather than the statement being not accurate..


  4. #104

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    Quote Originally Posted by Nitrogenius View Post
    Well then show where it is not accurate..
    I bet it is more of a dissimilar understanding of what really constitutes a big difference and what does not rather than the statement being not accurate..
    well here are two profiles for a real cave dive:





    buhlmann and vpm

    for a 25 minute (typical ocean tech) dive there is practically no difference


  5. #105
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    Quote Originally Posted by Nitrogenius View Post
    Well then show where it is not accurate..
    I bet it is more of a dissimilar understanding of what really constitutes a big difference and what does not rather than the statement being not accurate..
    Well, looking at Brian's example, ignoring over an hour of deco seems less than ideal.


  6. #106

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    Quote Originally Posted by PfcAJ View Post
    Well, looking at Brian's example, ignoring over an hour of deco seems less than ideal.
    Deco is over-rated. And once it starts to interfere with Happy Hour, it becomes optional.
    And does that last hour really matter?


    Sent from my iPhone using Tapatalk


  7. #107
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    Quote Originally Posted by Draker View Post
    Deco is over-rated. And once it starts to interfere with Happy Hour, it becomes optional.
    And does that last hour really matter?


    Sent from my iPhone using Tapatalk
    Hmm, no picture???

    Forrest Wilson (with 2 Rs)
    Any opinions are personal.
    Sump Divers

  8. #108

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    Quote Originally Posted by FW View Post
    Hmm, no picture???
    He is getting permission to post one....

    bob


  9. #109

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    Quote Originally Posted by Jax View Post
    Hey, I'm on no one's side!

    I just want to understand.
    When you understand deco theory, you should explain it to the leading researchers in the field. They seem to have a consensus that DCS has something to do with bubbles, but that's about it.

    Ken Sallot

  10. #110
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    Quote Originally Posted by kensuf View Post
    When you understand deco theory, you should explain it to the leading researchers in the field. They seem to have a consensus that DCS has something to do with bubbles, but that's about it.
    Ha! I know, right? I just want to understand the algorithm they used. That is just computer science and within my field.

    Great minds discuss ideas; Average minds discuss events; Small minds discuss people. ~ Eleanor Roosevelt

    "If a small thing has the power to make you angry, does that not indicate something about your size?" ~Sydney J. Harris


 

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