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Deep Stops Increases DCS

Discussion in 'Technical Diving' started by Divetech99, Dec 8, 2014.

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  1. Dr. Lecter

    Dr. Lecter Solo Diver

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    AG and his whacky RD is right because it's RD approach can do whatever works well for him/you. Me and the rest of the guys out here (plus a bunch back East) are running low GFs in the 50-80 range with high helium blends and long, deep dives, and feeling a :censored:load better afterwards for the reduction in deeper stops.
     
  2. Michael Guerrero

    Michael Guerrero Solo Diver

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    Operative word :)
     
    rjack321 and PfcAJ like this.
  3. Kevrumbo

    Kevrumbo Banned

    # of Dives: 1,000 - 2,499
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    Post comparative profiles that produced the condition for your anecdotal group Hannibal -let's analyze it, especially with regard to Deep Stops in high Helium mixes. . .

    (btw, the NEDU study utilizing Air doesn't apply to your anecdote either).
     
  4. PfcAJ

    PfcAJ Contributor

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    Kev is the same guy that tries to say there's a helium "penalty" when using a buhlmann algorithm even after it's been demonstrated that deco times with helium are shorter than deco times without helium.

    Research, science, and evidence has no bearing on what AG and UTD teaches.
     
    WRChadwell, rjack321 and Doppler like this.
  5. boulderjohn

    boulderjohn Technical Instructor ScubaBoard Supporter

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    I took my Ratio Deco/Min Deco class from AG of UTD. He quite specifically said that Min Deco is for EANx 32 only. "It is NOT an air table," he said.

    I left UTD for several reasons, one of which was my many arguments with its adherents, including AG, over decompression theory. I repeatedly asked for the research behind certain beliefs. It invariably came down to Andrew saying that it is based on his personal diving experiences. "I feel good when I dive this way," is the only research needed. In one online webinar, a woman asked the same question. He replied, "You have to have faith." "Faith in you?" she asked. "Yes," he answered.
     
  6. rivers

    rivers PADI Pro

    # of Dives: 500 - 999
    Location: Bristol, UK
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    The GUE min deco table is for 32% and 30/30. From what I understand is that on Rec 1, air is included because nitrox is not available everywhere, etc. But whether that is it's own set of tables or just a handy formula, I don't know
     
  7. decompression

    decompression Instructor...seriously...

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    ImageUploadedByTapatalk1418409278.972064.jpg ImageUploadedByTapatalk1418409319.456861.jpg


    Sent from my iPhone using Tapatalk
     
  8. boulderjohn

    boulderjohn Technical Instructor ScubaBoard Supporter

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  9. Kevrumbo

    Kevrumbo Banned

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    Of course Ratio Deco/Deep Stops is not supported by any scientific algorithm -just simply an amalgamation of all the best application of deco theories as they have evolved -from classical Haldane, Workman, Buhlmann; Baker's GF implementation, and bubble mechanics of present day VPM and RGBM. Period. (And you knew that Boulderjohn, since you took his online class which clearly states this point. . .)

    And yes AJ, there is a Helium penalty in a Buhlmann profile versus Ratio Deco for the same depth and time parameter --just like I "schooled" y'all in this thread:

    Post 131:
    http://www.scubaboard.com/forums/ad...ns/495553-what-ratio-deco-14.html#post7274174
    Post: 140:
    http://www.scubaboard.com/forums/ad...ns/495553-what-ratio-deco-14.html#post7274972
     
  10. Michael Guerrero

    Michael Guerrero Solo Diver

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    Unfounded claim which appears to be contradicted by empirical studies by experts in the fields of decompression theory and physiology.
     
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