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I own double 80's and double 104's. The 80's are feather light, and the 104's aren't bad, but I'm in the gym every day. I dive cold water and need a ton of lead with my 80's. I wear no lead with my 104's (and alum backplate) I feel like I have better trim with my 104's than my 80's. It's probably in my head. The 104's feel better on my back (subjective I know). It's easier for gas matching since my buddies also dive 104's (you dive thirds, don't you?) It's also a matter of convienience. I fill my 104's to 3000. Last weekend I did 2 light deco dives in 110'. I got off the boat and did a shore dive with a new diver. He emptied his 80, and I still had gas in my tanks for another shore dive. I couldn't have done this with 80's. For anyone who is considering buying 80's or 104's, I leave you with this thought. They both have good and bad characteristics, but if you are planning on GUE training, TECH 1 requires at least twin 95's which makes your twin 80's useless for the course (except as stages) ;-) ss On Tue, 28 Aug 2001, terry michael wrote: > Again, I'm losing you here. Could you elaborate on this dive planning stuff and exactly how it works. thanks > > -----Original Message----- > From: "marv"<ajmarve@op*.ne*> > To: "terry michael"<OEA51@go*.co*> > Cc: "Jim Cobb"<cobber@ci*.co*>, "MHK"<mhkane@pr*.ne*>, "Michael J. Blitch"<mblitch1@ta*.rr*.co*>, techdiver@aquanaut.com > Date: Mon Aug 27 23:11:07 PDT 2001 > Subject: Re: Silent Submersion Vs Dacor > > >JIm's thing< and its not just Jim, there is a small group now> is that > >the only tanks for drysuit is the double 104's. this is despite > >commentary from George himself that for ocean, you dont need all that > >gas even in a drysuit and that double 80s should be enuff for most of > >what one might attempt.< "for ocean the aluminum 80 is the tank of > >choice"> The rationale seems to be taught by most of your tek agencies > >that you can never have enuff gas because "you never know what is going > >to happen" and people find this more comforting to embrace than the fact > >that they need to exercise aerobically for diving. > > > >Personally i would suggest that you plan your dive and dive your plan, > >altering the plan only in the direction of being conservative during a > >dive. < i.e. less bottom time>. I would also suggest that if your going > >to carry a major reserve of one dive parameter<gas> you should have > >equvalent supply of any other<scooter/light burn>. > > > >Finally i would suggest that anyone who cant understand why huge tanks > >and a tiny scooter might not be a good idea should reread the last > >paragraph of Gavin's chapter and look in the mirror. > > > >marv > > > >ps i wear dbl 80s, drive a mako and set the treadmill on speed 8 at > >least once a day. > > > > > > > >terry michael wrote: > > > >> Are we talking about diving thirds here or what? This is a public list please explain what you are trying to tell us. > > > >> > >> > >> -----Original Message----- > >> From: "marv"<ajmarve@op*.ne*> > >> To: "Jim Cobb"<cobber@ci*.co*> > >> Cc: "MHK"<mhkane@pr*.ne*>, "terry michael"<OEA51@go*.co*>, "Michael J. Blitch"<mblitch1@ta*.rr*.co*>, techdiver@aquanaut.com > >> Date: Mon Aug 27 10:37:44 PDT 2001 > >> Subject: Re: Silent Submersion Vs Dacor > >> > >>> so what are you saying Jim, that you dont plan your dives or dont have > >>> the discipline to follow that plan ? > >>> > >>> you are on the right track with respect to less is best, you just need > >>> to take it all the way. > >>> > >>> marv > >>> > >>> Jim Cobb wrote: > >>> > >>>> Gas=Life. Is that real enough for you? > >>>> > >>>> Jim > >>>> ------------------------------------------------------------------- > >>>> Learn About Trimix at http://www.cisatlantic.com/trimix/ > >>>> > >>>>> From: marv <ajmarve@op*.ne*> > >>>>> Date: Fri, 24 Aug 2001 18:11:57 -0400 > >>>>> To: Jim Cobb <cobber@ci*.co*> > >>>>> Cc: MHK <mhkane@pr*.ne*>, terry michael <OEA51@go*.co*>, "Michael J. > >>>>> Blitch" <mblitch1@ta*.rr*.co*>, techdiver@aquanaut.com > >>>>> Subject: Re: Silent Submersion Vs Dacor > >>>>> > >>>>> and yet you doggedly defend the concept of carrying three times as much > >>>>> gas as needed for a given dive< see any old dbl 80 vs 104 thread.> > >>>>> > >>>>> Marv > >>>>> <keepin' it real, yo> > >>>>> > >>>>> Jim Cobb wrote: > >>>>> > >>>>>> I would still like something smaller, don't see the point in carrying 2 > >>>>>> hours worth of burn time on a dive were your actual scooting time is around > >>>>>> 20 minutes. > >>>>>> > >>>>>> > >>>> > >>>> -- > >>>> Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. > >>>> Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'. > >>>> > >>>> > >> > >> > >> ___________________________________________________ > >> GO.com Mail > >> Get Your Free, Private E-mail at http://mail.go.com > >> > >> > >> > >> > > > > > ___________________________________________________ > GO.com Mail > Get Your Free, Private E-mail at http://mail.go.com > > > -- > Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. > Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'. > -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. 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