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Don, that has all been in the body of the discussions. We use a nitrogen equivalent of no more than 130 and prefer 100 or less for back gas, quite a bit less when possible, deco gas at no more than 130, but less is preferred and this is with trimix on the back, we do not worry about hpns, proper use of oxygen means short exposures with breaks. Don W. wrote: > > George, > > I'd like to learn more about how you plan your bottom and deco mix. > >From what I gathered so far, you try to control the PP of both O2 and > N, and lean more towards heli-ox for intermediate deep dives. > > 1) Is there a reference book that you would recommend, or is your > current > practice a result of you & your dive buddies experiments. > > 2) Do you have a max PPN that you plan with? > 3) What constitutes "misuse" of O2, and what is proper use? > 4) At what depth would you go back to tri-mix to lessen HPNS and have > you ever had to do this for a dive? > > regards, > Don W. > > kirvine@sa*.ne* wrote: > > > > Exactly , the nitrogen. Also the oxygen if missused. I told you, I can > > NOT air dive and do jack shit the next day or even the next week. I can > > compete the next day if I used the right gas(es) properly. -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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