| This has come up a couple of times recently, here and on the list. I guess there is a group of newbies like me coming through and wondering why all our mix tickets are now useless.
If helium is our friend and narcosis is a bad thing then logic says use the appropriate gas for the depth. So, as you say, it seems sensible to use mix 40+. But, as pointed out, if you have insurance it won't pay out as you don't have the ticket. Don't use mix, die and your dependants get cash. Maybe I/you/we prefer "use mix and live"?
I wonder if TDI could allow combining of courses like you can do Adv Nitrox and Deco Procs together? If I am Adv Trimix OC then I do an extra module at the end of the Basic CCR and go straight onto Normoxic depth certification. Get some dives done and come back for an Advanced CCR Mix course. TDI don't lose out - they get the same number of courses per student. We as divers don't lose out as we get to use trimix safely out of the box, and insured, with our OC mix experience counting for something.
I can't see many people leaping straight past 40m on Dive 1.
Last edited by Mdemon : 28-12-04 at 02:39 PM.
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