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Hello, it must be roast Jody day,  I will continue fence sitting.

>> o The straight Buhlman algorithm lacks conservativeness, and has been
>> responsible for many cases of DCI.  If you somehow add conservatism to the
>> algorithm, you are then no longer producing even a version of the Buhlman
>> algorithm, but rather a one-off deco algorithm which is completely untested
>> and unproven.
>
>As far as I know, all the popular models (with the possible exception of 
>the DCIEM model, anyone who knows otherwise please jump in here) have 
>been responsible for many cases of DCI.  

Off the top of my head, both DCIEM heliox tables and Buhlmann's ZH-L16 model 
were published with about 2% incidence of DCI.

>There is a statistical risk of 
>DCI on any resonable exposure dive, and even very "conservative" tables 
>would not eliminate it.
>I don't think that adding small amounts of extra conservatism helps you 
>very much.  I don't hear people running around saying "boy, with the new 
>shorter no-dec limits on the RDP we have only 10% the DCI we had on Navy 
>Tables."  Once you get to low risk, you get dimishing returns with 
>increased conservatism.

Exactly.


regards,

David Doolette
ddoolett@me*.ad*.ed*.au*

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