| I find it interesting we have experienced RB divers (John and Graham) saying you don't need a sensor. Once you've actually seen an RB80 taken to pieces and really understand what's involved you understand why it isn't needed.
The PP02 drop is predictable - you don't need a sensor to tell you what it is. The units failure modes are detectable by audible and physical alarms for the most part.
Incidents will happen whether you have sensors or not. Look at the ECCR's - multiple sensors, voting logic, redundant controllers. Yet people die on them - if sensors solve the problem then why would that happen? Simple answer is people make mistakes - no matter what you do you can't allow for the daft errors.
The solution is to keep things as simple as possible and train the appropriate responses. The RB80 is dangerous - much more so than OC and every time I dive it I don't doubt that. For that reason I don't see it as pinacle of GUE training. Rather its an off-shoot that is taken if the diving OC would be more dangerous than with an RB.
If you look at the dives Chris, Danny and Fred are doing they are accomplishing stunning dives all without a RB. No need to have one so they don't.
Cheers
Al
__________________ Helium is our friend - GI3
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