diverklondike

The request is a very reasonable one... I would suggest that those people who do have OC trimix should plan to get a CCR trimix card.

Here is the reasoning....

1) Initial CCR training is unit specific.... Mod 1 in most cases...

2) Advance CCR certs like trimix and cave are non unit specific.

3) Even if you are OC Trimix, a CCR trimix card is becoming more and more of a requirement by shops and resorts. There are enough difference and the fact that training orgs have created it that people are asking to see them. You can debate all you want about it but there are places that will not let you dive certian dives with out it.

4) Funny that you should mentioned Cave. There are definate difference between OC cave and CCR cave skills. So yes I can see a shop or someone running a trip that may ask you to show a cave ccr card given the right situation.

5) I do agree that the whole number of hours thing between the optima and HH are a bit flakey of a stance for them to take...

Complain as we may like about what the difference are, resorts and boats are asking for this stuff as we speak. My 2 cents is that it's between the instructor and the student based on the training agency guidelines to determine what needs to be done to earn a cross over if you already have the OC flavor of a given certification.

M