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I've read a lot lately, here and elsewhere, about certification 
agencies.  I'm planning on taking up Tri-mix diving within the next year 
to extend my depth range for the sake of seeing several specific wrecks 
in the Great Lakes.

Several times I've come across the sentiment that 'sanctioned' 
certification is not always desirable.  I see two immediate shortcomings 
of not getting officially certified, however.  First, I don't regularly 
dive with folks who use mix.  It will be difficult, therefore, for me to 
gain the necessary technique skills without some coursework.  Second, I 
have no idea what's involved in setting up a cascade system to do my own 
fills and will need a 'c' card to get commercial fills.

I am very confident in my analytical abilities.  I am certain that I can 
pick up the 'technical' and physiological aspects without regulated 
coursework.  The technique side is a different story.

What is the general consensus on certification.  Is it typically 
considered a worthwhile endeavor?  Am I better off spending my money on 
a cascade system than classes?  I have to admit that I don't like the 
idea of having to take a class that requires me to breathe air at 160' 
before I can get Tri-mix.  The whole point of mix, after all, is that I 
might actually be able to maintain the presence of mind at depth to 
remember my name.  Is this a legitimate concern?  I do like the idea of 
doing my first mix dives with someone who does this kind of a thing for 
a living, i.e. an instructor, but is the trade off worth the money?

Assuming I opt for regulated certification, what certifying agency 
offeres the best mix of technique vs. cost?  As I understand it now, 
IANTD puts together the better over-all package, but requires the 
greatest number of courses and outlay of cash.  True or no?

Thanks for the advice,
Sincerely,
Eric Mieczkowski
Mechanical Engineer and Relative Newbie Extroardinairre

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