Deep Stops Increases DCS

[Dr. Lecter]

UTD still cites the original WKPP Table in their current implementation of Deep Stops in Ratio Deco.

btw, AG similarly claims that the NEDU paradigm has no bearing on Deep Stops for all the same reasons mentioned above (i.e. the exclusive & sole use of Air for bottom mix and decompression gas).

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 load better afterwards for the reduction in deeper stops.

 

[Michael Guerrero]

claims

Operative word

 

[Kevrumbo]

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 load better afterwards for the reduction in deeper stops.

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).

 

[PfcAJ]

And the research backing that conclusion can be viewed at....?

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.

 

[boulderjohn]

Min Deco uses Air and is part of GUE standards for Rec.

News to me... citation?

I just sat in for a days of a Fundamentals class and there was no mention of air diving. Perhaps in rec 1, I guess?

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.

And the research backing that conclusion can be viewed at....?

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.

 

[rivers]

Min Deco uses Air and is part of GUE standards for Rec.

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

 

[decompression]

Sent from my iPhone using Tapatalk

 

[boulderjohn]

View attachment 199081View attachment 199082


Sent from my iPhone using Tapatalk

It has clearly changed in the years since I took the class.

 

[Kevrumbo]

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.

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.

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

 

[Michael Guerrero]

all the best application of deco theories

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