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Frank Lavllee wrote:
>My main purpose for using EANx 80 over 100% O2 is the reduced CNS%
>exposure.

    This guys is doing bounce dives and then talking about cns exposure,
when he clearly does not understand how this exposure is managed, nor
does he understand what cns exposure is. This alone is dangerous, and a
clear example of the fine instruciton we have out there from mail order
training agencies like TDI. Notice that this lack of any legititmate
information does not serve as a deterrent to cocksure pontification.

    He goes on to prove ignorance of the topic with the following:

>  Let me use 3 dive profiles as an example:
>EANx 34 @ 100' for 120 minutes.  CNS% exposure on EANx 80 vs. 100% is
103.28% vs. 123.23%.

   This clearly shows the guy has no clue what cns even means - only
somebody trully ignorant of the consequence of oxygen exposre would
press the limits on a long dive ( which he obviously has never done and
is guessing about) and then go to a continued oxygen pounding at deco .

  He shows his true colors on mix ( sounds again like some deep air
thinking) with these gems :

>Trimix 17/20 @ 240' for 30 minutes.  CNS% exposure on EANx 80 vs. 100% >O2 is
63.27% vs. 83.02%.

 Here we see the "good deep on air" thinking. Why make the wrong trimix?
These attempts at appearing to know what he is talking about on oxygen
are dangerously misleading, citing numbers that are meaningless but
official-sounding.
 
 The following is even worse, and points to the training out there:   

>Trimix 14/33 @ 300' for 30 minutes.  CNS% exposure on EANx 80 vs. 100% >O2 is
92.03% vs. 125.66%.

  What is the 33% helium supposed to do at 300 feet? This guy Lavelle is
the kind of dangerous, farm-animal-stupid big mouth that dominates
central and north Florida cave diving, and a perfect example of why the
WKPP had to do something while "tech" diving is still legal.

   He goes on to say: 

>I never have been out of state and done any blue hole diving. 

  This is obvious.
--
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