Deep stops still in use in 2014?

[Nasser]

I was wondering what your feelings are regarding deep stops these days? Some of the latest findings are showing that deep stops may not be so beneficial after all... in part due to some of the tissues that are still absorbing additional nitrogen even if off-gassing is occurring in other tissues at these deeper depths. I'm sure there are other more complex explanations but I would like to open this up for discussion and get your thoughts.

Are you doing deep stops? are you generating deep stops when you cut tables or set your computer? (i.e. LOW Gradient Factors settings or conservative settings on VPB conservatism etc...).

Would be interested in hearing everyone's thoughts on this.

cheers,
nasser

 

[tomfcrist]

I incorporate deep stops generally on dives deeper than 180 that involve extended deco. Data that I have seen recently indicate that they are beneficial for dives that involve significant on gassing on the bottom portion of the dive, yet not so much for dives involving limited deco.
As far as recreational dives go, there seems to be no significant advantage or disadvantage to doing deep stops, other than it tends to slow a recreational divers overall ascent rate enough to possibly prevent an inexperienced diver from ascending quickly enough to promote micro bubble growth...assuming they are within NDLs.

 

[Dsix36]

I have personally never understood the advantage of deep stops. I am glad that current thinking is moving away from them.

I have been using aggressive GF numbers for the initial stops on all my diving for several years and pushing my upper value to XX% until a couple of years ago when I lowered it to XX%

I use XX because I do not want to tell others what to use without a full and complete understanding of the implications of doing so.

 

[LiteHedded]

I don't see much difference with or without. I prefer to get off the bottom a little quicker these days. The data seems to suggest the benefit is kind of suspect anyway

 

[DogDiver]

Uwatec computers use a Profile Dependent Intermediate stop technology. Deep two minute stops are determined by your dive profile and vary as to depth. That's what I currently use. Two chamber trips prior to changing computers. I know it's not the computers that got me bent, but after a lot of research I chose the uwatec tec2g.


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[ucfdiver]

I think measuring with a precision and cutting with an ax is kind of silly. I've used both algorithms, plus S curve which kind of combines them, and didn't notice any difference in fatigue or anything after the dive.

I think if we spent half as much time focusing on staying hydrated, getting a good nights rest, and keeping a reasonable level of physical fitness as we do worrying about different models we would see far less DCS.

 

[flots am]

I was wondering what your feelings are regarding deep stops these days? Some of the latest findings are showing that deep stops may not be so beneficial after all... in part due to some of the tissues that are still absorbing additional nitrogen even if off-gassing is occurring in other tissues at these deeper depths. I'm sure there are other more complex explanations but I would like to open this up for discussion and get your thoughts.

Are you doing deep stops? are you generating deep stops when you cut tables or set your computer? (i.e. LOW Gradient Factors settings or conservative settings on VPB conservatism etc...).

Would be interested in hearing everyone's thoughts on this.

For no-deco dives I follow my Smart-Com. For deco dives, I follow vPlanner.

Not bent so far . . .

 

[diver 85]

I think of 'them' as part of a long, s-l-o-w ascent...& the older I get(now ~62), the slower I get---in everything(in & out of the water).......About 30 years ago when I 1st started diving, I thought I was bullet proof.......but........no longer have that attitude.......

 

[bakodiver391]

There is a complete train wreck of a thread that runs to a hundred pages or more over on Rebreather World. I side with Dr. Simon Mitchell who says 30/70 gradient factor should keep most divers safe. I'm using 30/75 to cut tables and also on my computer, with no added deep stops, and it has served me well on 55 M air dives with O2 deco.

 

[Michael Guerrero]

I do a Pyle stop for my "deep" dives (130' - 160'), but that's about it. I account for it on my cut sheets as a multi-level dive. My dives are pretty light/conservative though.