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>Hi Christopher, > >*Very* interesting post but one *minor* point. You said; >DCIEM allows for 7 minutes of surface time prior to recompression. >Abyss will be set up for 5 mins, with a reccomendation for as short an >interval as is possible. >end quote. > >DCIEM SurD O2 table allows for 7 minutes *from leaving last stop to arriving >at chamber bottom* rather than "surface time". Ascent for the last 30 ft is >at 30 ft/minute and the chamber blowdown is usually about 1 minute, so >DCIEM actually recommends the same surface interval that you do. > You are quite right, and thanks for pointing out the error in my phrasing. There is a BIG differance in Surface time vs. surface and ascent. >As to your closing question, Hmm, What I'd say now and what I'd do then are >probably two very different things. I've used SurD O2 and I know it works >(something that makes a difference IMHO), so I'd lean toward IWR. We have >had problems with the local chamber, so I'd lean toward IWR. I think >immediate recompression is a *good* thing, so I'd lean toward IWR. What I'd >do when faced with it - ????? Sounds to me like you are not willing to comit to one route or the other.. <G> /\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\ Christopher M. Parrett, President, Abysmal Diving Inc. 6595 Odell Place, Suite G. Boulder Colorado, USA 80301 Ph.303-530-7248, fx 303-530-2808 Makers of ABYSS, Advanced Dive Planning Software. Available in English, French, German, Italian, Portuguese and Swedish. Abyss, Mixed Gas, Technical Nitrox, Recreational Air. Abyss, Technical Logbooks featuring 22 integrated databases.
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