Deep Stops Increases DCS

[Akimbo]

And people wonder why commercial divers don't use Tri-mix. HeO2 is so much simpler and effective in so many ways.

 

[ajduplessis]

Effective on all fronts except the wallet

 

[kr2y5]

It's interesting how different folks have very different philosophies for drawing the line between "I will do what I always do because I think it works for me" vs. "I must change something". For some, getting mild DCS just once is already crossing the line, for others it's not...

Kev, I think some might have tried to paint you as a stubborn person, but surely that ain't it, you simply disagree where the line should be drawn. So, where do you personally draw the line, what kind of personal experience, study, or other sort of evidence would it take to cause you to revisit your diving habits? Just hypothetically, what sort of facts could your opponents lay on the table to bring you on their side?

 

[Rich Keller]

The study below from the Navy Experimental Diving Unit indicates that Deep Stops increases incidence of DCS. I've been taught Deep Stops in my Tec Training and use Min Deco on non Tec dives on air. Should we rethink the practice of deep stops? See link below:

http://archive.rubicon-foundation.o...23456789/10269/NEDU_TR_2011-06.pdf?sequence=1

It has long been known that the deeper you go and/or the longer you stay the less accurate these tables become. This study just confirms what we already know.

 

[Kevrumbo]

It's interesting how different folks have very different philosophies for drawing the line between "I will do what I always do because I think it works for me" vs. "I must change something". For some, getting mild DCS just once is already crossing the line, for others it's not...

Kev, I think some might have tried to paint you as a stubborn person, but surely that ain't it, you simply disagree where the line should be drawn. So, where do you personally draw the line, what kind of personal experience, study, or other sort of evidence would it take to cause you to revisit your diving habits? Just hypothetically, what sort of facts could your opponents lay on the table to bring you on their side?

I'll let y'all know when I return to Truk again in January 2015 (just made the reservation for another three week stay). I'm now considering doing only one deep deco dive per day instead of the usual two with a 3 hr SIT; and the rest of time there to start basic training & cert on a JJ CCR Rebreather Course.

 

[MikeWebb]

I'll let y'all know when I return to Truk again in January 2015.....to start basic training & cert on a JJ CCR Rebreather Course.

Shut up shut up. And see you next year RBW. It'll be interesting to read your JJ post there.

 

[Dr. Lecter]

Please tell me it'll be the UTD-"modified" JJ

 

[rddvet]

I'll let y'all know when I return to Truk again in January 2015 (just made the reservation for another three week stay). I'm now considering doing only one deep deco dive per day instead of the usual two with a 3 hr SIT; and the rest of time there to start basic training & cert on a JJ CCR Rebreather Course.

I can't wait. Come february we get to start reading posts about how much this "expedition" cost. May I request even further itemization of your bill.

 

[Kevrumbo]

Please tell me it'll be the UTD-"modified" JJ

I have a Kiss MX CCR unit as well, but I might substitute the JJ Scrubber & Head unit for the Backmount version and use the Kiss in Sidemount MX/Z-system sometime in the future (gotta stay compatible with my DIR mixed teams ya know).

I can't wait. Come february we get to start reading posts about how much this "expedition" cost. May I request even further itemization of your bill.

Sure . . . !
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Thread Summary Link (and my opinion on what to take from the NEDU Experiment):

http://www.scubaboard.com/forums/te...-deep-stops-increases-dcs-10.html#post7294246

 

[descent]

... The NEDU study and other people's personal experiences with VPM (which produces 'deep' stops even shallower than RD) both say shallower is better. ...

HBDiveGirl usually posts in the SoCal forum. Her sig includes this quote.

"...during approximately 900 trimix dives conducted over the past 18 or 19 years, I have found the most effective ascent speed
to be a variable ... run deep in the water column, walk through the mid section, crawl when shallow."
--Doppler