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But Jess, DECOM is all us common folk have, we don't have the shared knowledge you Dive Gods have, and since we don't do dives requiring 8 to 16 hours of deco, we probably don't need that knowledge either ;-) Still, anything you care to share is more than welcome. Perhaps pearls for the swine but one never knows, doesn't one? Flame away, I don't care either way --- Adri KC Haine darkangel@en*.co* "Killer factors in technical diving are complacency, attitude, oxygen toxicity, exceeding personal limits, ignorance and complexity." Mike Menduno - EuroTek 95 On Fri, 2 Apr 1999 15:22:43 Jess Armantrout wrote: >Oh, if DECOM help file says it, it must be correct. I am sorry I questioned >you. And if DECOM generates tables that make the dive longer, that too must >be correct. What was I thinking. > >Try doing a few hundred dives that require one to eight hours of deco and >dive with guys with colectively several thousand dives with decos ranging >from one to sixteen hours of deco and I think you may find a different set >of information. > >Trout > >-----Original Message----- >From: Mike Rodriguez >To: Jess Armantrout >Cc: Cam Banks ; Techdiver Mailing List > >Date: Friday, April 02, 1999 12:38 PM >Subject: Re: Deep deco question > > >>At 05:31 AM 4/2/99 -0600, Jess Armantrout wrote: >> >>>>The purpose of deep-stops is to reduce the fatigue (generally >>>>believed to be sub-clinical DCS) that is often associated >>>>with deep/deco diving. >>> >>> >>>no, it is for all symptoms of dcs. >> >>From the Decom help file: >> >>"Divers utilizing deep stops report a lessened degree of >>fatigue." >> >>I agree that deep-stops reduce all symptoms of DCS, not just >>fatigue; however, in my conversations with divers who use >>deep stops, I've found that most use them to reduce fatigue, >>not to reduce other DCS symptoms. This seems to be because >>fatigue is very common after diving, while more serious >>DCS symptoms are rare. Also, most of the divers I've >>spoken to use conservative deco schedules rather than deep- >>stops to help avoid DCS. If they also use deep-stops, they >>do so to reduce fatigue. >> >>So, in this context, I stand behind my original statement. >> >>>>Note that deep-stops have not been demonstrated to decrease >>>>the incidence of DCS, however deep-stops will almost >>>>certainly NOT INCREASE the incidence of DCS. >>>> >>> >>> >>>yes, deep stops have been demonstrated to decrease the incidence of dcs in >>>Richard Pyle and in the WKPP mixed gas exploration divers. Failure to de >>>them has been demonstrated to increase dcs in the same subjects. >> >>From the Decom help file: >> >>"The numbers are not in on any reduction of DCS >>from this method. It will however NOT increase your rate >>of DCS incidence." >> >>If there is newer information available, please point us to >>it. I'm very interested in reading it. >> >>>>Effectively, deeps-stops slow your ascent to prevent >>>>sub-clinical DCS from beginning in your saturated >>>>fast tissues yet keep your ascent fast enough to prevent >>>>your slow tissues from loading up on N2/He. In practice, >>>>deep-stops add only a few (~5) minutes of deco time to >>>>the typical tech dive. >>>> >>> >>> >>>no, done correctly deep stops reduce deco time >> >>Generated by Decom: >> >>Deep stops = YES >>Total deco time = *94* >>Depth Time DT >> 200 30 30 >> 120 1 34 >> 110 1 35 >> 100 1 36 >> 90 1 37 >> 80 1 38 >> 70 3 41 >> 60 6 47 >> 50 7 54 >> 40 14 68 >> 30 20 88 >> 20 15 103 >> 10 24 127 >> >> >>Deep stops = NO >>Total deco time = *90* >>Depth Time DT >> 200 30 30 >> 80 3 37 >> 70 3 40 >> 60 6 46 >> 50 7 53 >> 40 14 67 >> 30 18 85 >> 20 15 100 >> 10 24 124 >> >>-Mike Rodriguez >> >> > >-- >Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. >Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'. > __________________________________________________________________ Get your own free England E-mail address at http://www.england.com -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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