Nobody was comparing it to nitrox.  The poster said it was a "drop 
in" gas for *air*, which has a very different MOD.  If you don't make 
that clear to people, you might put them in a dangerous situation.

Scott wrote:
~
>I don't understand what all the resistance and fear of an imagined risk is
>based upon.
>
>Oxtox is no more an issue with Triox than with Nitrox.
>
>32% Nitrox has an MOD of 110 or so at a 1.4 PPO2.
>
>32/30 has the same MOD, and *better* no stop times.
>
>Scott
>
>----- Original Message -----
>From: Paul Braunbehrens <Bakalite@ba*.co*>
>To: Don Burke <donburke56@ne*.ne*>; <techdiver@aquanaut.com>
>Sent: Saturday, October 07, 2000 4:20 PM
>Subject: Re:rec trimix
>
>
>>  I think that this is where trimix computers come in.  Even if it's a
>>  good "drop in" gas, I'd still like to track what I'm really using.
>>  Also, because of O2 Tox there would have to be some kind of an
>>  "orientation class" at the least.  If you go down to 160 on air and
>>  come back up right away you're stupid, but you won't tox on O2.  A
>>  "drop in" gas would need some serious warning if it has a higher O2
>>  content.
>>
>>  Cheers.
>>
>>  Don Burke wrote:
>>  ~
>>  >As variation on the same theme, how about 28/35 as a "drop-in"
>replacement
>>  >for air?
>>  >
>>  >It is good to 130 feet under any conditions a rec diver will see.
>>  >
>>  >The no stop times are longer than for air.
>>  >
>>  >The END at 130 feet is about 80 feet.
>>  >
>>  >The only downside is cost.
>>  >
>>  >Don Burke
>>  >Chesapeake, Virginia
>>  >
>>  >----- Original Message -----
>>  >From: Jim Cobb
>>  >
>>  >Like I wrote in my post I do not discount proper training. And I also
>>  >mentioned that you should be proficient in mixing nitrox before you
>attempt
>>  >trimix. But I do submit that you could take a rec diver with 4 dives
>under
>>  >his belt put a tank of 21/20 on his back and the only thing the diver
>would
>>  >notice is a more enjoyable diving experience.
>>  >
>>  >I also submit that a large portion of panic attacks suffered by new
>divers
>>  >is in part caused by the unfamiliar sensation of narcosis. Around here
>>  >beginning divers regularly do their training dives in 90+ ft of cold,
>murky
>>  >water, a prime environment for narcosis induced clusterfucks. On any
>given
>>  >weekend you can see these new divers doing panic-stricken free ascents
>>  >popping up like mushrooms all around the dive boat.
>>  >
>>  >Now these new divers should not mix their own trimix but perhaps trimix
>>  >should be the REAL "safeair" (I still laugh my ass off when I see
>>  >potentially toxic mixtures of nitrox labeled "safeair", what genius came
>up
>>  >with that).
>>  >
>>  >Anyway I see your point that some people need training and hand-holding
>more
>>  >than others and should be prepared to pay for it.
>>  >
>>  >Jim
>>  >
>>  >On Friday, October 6, 2000, at 06:46 AM, David B. Widen wrote:
>>  >
>>  >Jim
>>  >
>>  >You do not represent the typical diver. You do the research and reading
>>  >before you jump in. Many of these people will just jump in. The reason
>for
>>  >training is to ensure that at least some level of understanding and
>>  >knowledge is in place. You are opening a door for people to use something
>>  >they may not have the knowledge to use and get hurt.
>>  >
>>  >You know some of the same people I do. Would you want to turn some of
>those
>>  >folk loose on trimix without them getting some guidance? So where is the
>>  >line between the between those with enough good sense to doit with out
>>  >training and those that need the training to get them on the right road
>and
>>  >doing thing right.
>>  >
>>  >Trimix diving is technical diving. There is more to technical diving them
>>  >just having the equipment, some O2, and in this case HE.
>>  >
>>  >David
>>  >
>>  >-----Original Message-----
>>  >From: Jim Cobb [mailto:cobber@ci*.co*]
>>  >Sent: Wednesday, October 04, 2000 3:55 PM
>>  >To: Paul Braunbehrens
>>  >Cc: Mcinnis, Don; 'RDecker388@ao*.co*'; scottk@hc*.co*;
>>  >techdiver@aquanaut.com
>>  >Subject: RE: clarification was: An the beat goes on and on
>  > >
>>  >While I am not discounting the need for proper training, you don't need
>>  >squat for certification to dive with trimix. I have yet to see a
>industrial
>>  >gas supplier ask for a c-card for tanks of 02 and He. And as far as the
>the
>>  >air tops are concerned it's pretty much a "don't ask, don't tell" policy
>at
>>  >the dive shops I've visited. If your diveshop is an asshole about this,
>then
>>  >it's time to move on.
>>  >
>>  >Personally I believe that if you are proficient at mixing nitrox and are
>>  >currently mixing it on a regular basis, there is no reason one earth why
>you
>>  >can't shitcan your nitrox wrist computer, get DecoPlanner for your laptop
>>  >and go trimix diving. It ain't rocket science, folks.
>>  >
>>  >Jim
>>  >
>>  >On Wednesday, October 4, 2000, at 11:41 AM, Paul Braunbehrens wrote:
>>  >
>>  >No kidding! I'm doing it right now, adv. nitrox, stage deco and
>>  >trimix just because I want to use He. It's actually ironic that you
>>  >have to do a deco class to use trimix. It seems to me they are
>>  >separate subjects. You won't get a fill without it though.
>>  >
>>  >
>>  >Mcinnis, Don wrote:
>>  >~
>>  >>Bob,
>>  >>
>>  >>What's the prerequisite in shingles needed to get into it? Usually
>needed
>>  >is
>>  >>the advanced nitrox, decompression techniques, and then the "entry level
>>  >>trimix" course at least. All this for being able to dive with a clear
>head
>>  >>between 70 and 150'. Scott's point all along is there needs to be a
>"rec"
>>  >>HOTx course with something like a nitrox C-card pre-req to open up He to
>>  >>more people without having to go through 4 extra courses (not to mention
>>  >>about $2000 or more) just to dive HOTx which is by definition relatively
>>  >>shallow (less logistics) diving.
>>  >--
>>  >Paul Braunbehrens mailto:Bakalite@ba*.co*
>>  >http://www.daw-mac.com Mailing list for digital audio on the mac
>>  >--
>>  >Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'.
>>  >Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
>>  >
>>  >
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>>
>>  --
>>  Paul Braunbehrens mailto:Bakalite@ba*.co*
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