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Dan, make it 35 / 50 / 100, and if you really want an improvement, put
30% helium in the 35 oxygen mix. The next mix down is 18 ox / 40 helium.

Standardizing the mixes and bottle markings is essetial to long term
safety, and I have already worked out all of the decompression
advantages over as much as 10,000 man dive hours of bottom time and the
corresponding amounts of decompression. The ONLY people who got bent had
some precondition at the time or a violation of obvious magnitude.

Also note that my methods hold up over ridiculous exposures with minimal
decompression times. Nobody else can say that.

Dan MacKay wrote:
> 
> Hi all,
> 
> I'd like to thank everyone who took the time to reply to my post. It was most
> informative. I have always been of the opinion that when diving mix you have
to find
> the schedule that works best for you and the dive that you are doing. I tried
breaking
> on my back gas (16/50) during the deco 30 min bottom @ 210 and the difference
was
> amazing. No loggy feeling or low grade headache. I think that I will start
carrying a
> 120 mix and start using deeper stops. The deco so I will end up with a
32/50/100 as I
> was playing around with the tables and that combo seems pretty good.
> 
> Thanks again.
> Dan
> 
> kirvine@sa*.ne* wrote:
> 
> > We break to the most hypoxic mix we can breathe all the way up at least
> > every twenty minutes, and in the oxygen phase we shorten that to as low
> > as 12 minutes with up to 8 minutes off. We do not interrupt the shcedule
> > for these "breaks". This routine spares the oxygen damage completely, as
> > measured by vital capacity tests that day and the next few days.
> >
> > Take a look back at what the usdct idiots did - they fried all of their
> > divers repeatedly due to ignorance of how to properly do this.
> >
> > The "clock" concept" is somewhat arbitrary and based on empirical
> > evidence - the breaks have extended the time to tox in tests. More
> > important, however, is the Navy experience which says that tox risks
> > comes in multiday exposures, so keep that in mind.
> >
> > Dan MacKay wrote:
> > >
> > > Hi George and to anyone who might have an answer,
> > >
> > > On my longer dive profiles which are typically 30 - 50 minutes @ 250', I
always
> > > use a 16/50 mix with 50% & 100% for deco. At the end of these dives (or
longer
> > > duration) I have blown my CNS clock away. For a 50 minute exposure I have
a total
> > > CNS clock of ~180%. This does not appear to cause me a problem as I have
been
> > > doing a couple of dives a week using profiles like this for a couple of
years now
> > > and this has not proved a problem. The only time I think that I ran into
this as
> > > a problem was about 4 years ago when I was diving a lot of deep air with
36 and
> > > 80 for deco (ok it was before I saw the light) on the last two dives I
did in a
> > > two week period I couldn't breath by the time I hit my 20' stop. Symptoms
didn't
> > > abate till I was on the surface for about 15 min. In anycase I don't do
that now.
> > > I know this is small potatoes compared to what you and JJ do on a normal
WKPP
> > > dive. What do you do just ignore it? or what is your philosophy on this?
> > >
> > > Thanks,
> > > Dan

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