Quote: (Originally Posted by
Andy Del)
The major differences are going the 'niggle' points in individual rebreathers. the most obvious is clockwise / counterclockwise loops. Not being fully assimilated on a new unit's differences here has cost at least one diver his life. Ditto for unit setups and checking.
Right, I agree with that. But then again, the Optima and HH are very similar in this respect. Both have the same electronics, both have OTS CLs, both have the Dil/O2/ADV in the same location, both have the same direction of gas flow, etc. The main difference is the setup, but this was already covered extensively in my basic HH CCR training in February.
There is really no reason why my logged hours should now reset to zero, or why I should have to do a full Normoxic CCR course given that I already did many Normoxic Trimix OC dives (and Normoxic Trimix CCR dives as well, without any cert card). I would be ok with doing a simple cross over training (it's always a good idea to brush up your skills), but to redo everything doesn't make any sense IMO.
What's next, a requirement that I have to redo my cave training because I switched to CCR? And then do it again because I switched from one rebreather to a different (but similar) one?