Quote: (Originally Posted by
sabgia)
I think you highlight an important clarification.
I don't think there is intention to proclaim mCCR being safer. I think many agree eCCR with good monitoring is better.
What is intended to be expressed is the practise of mCCR technique (using eCCR), and the resulting habit, should result in the required skill.
I dont believe there is any correlation.
Developing the habit to check your Eccr PO2 gauges is no different from developing the habit to check your MCCR PO2 gauges & inject O2. You just need to develop the habit - its not hard.
I dont need the added responsibility (fine tuning the setpoint) and risk (If I forget to) to force me remember to check my ppo2 gauges.
I check because thats what we are taught in MOD1 and it will halp me not to die (which I think is motivation enough)
IMO the only real benefit of running mCCR (with eCCR back up) is in the case of a solenoid failure you will find maintaining setpoint during the dive easier and less stressful as you will be used to it.
Back when I dived an YBOD I used to dive every 3rd dive manually for this reason...before I realised how simple and non task loading it had become to do so - so I stopped.