Quote: (Originally Posted by
OceanOpportunity)

When used as a parachute, waiting an hour or more into the dive for the thing to fire does not instill any additional confidence or assurance. IMO, it does the opposite...I'd be so paranoid that the thing wouldnt work when needed that I'd be paying EXTRA close attention to my monitoring devices and manual injections...I'd never need the parachute.
Mike,
Is there any evidence to suggest that the solenoid would not fire in "parachute" mode when you need it? I've never had a solenoid on my rig so I'm curious to what the failure rate of eCCR's are such that this is a real concern during a dive, especially if you are doing your predives and the solenoid is firing properly.
For me, the "parachute" system is purely backup - I am still the one responsible for maintaining my ppO2 and I always will be when flying manual, I don't think there are two ways about it. But if I were to pass out, or something else were to happen, at least the system would (hopefully) keep my ppO2 up. I would rely on buddies, but I find doing predive checks on them doesn't always give the desired result
The main benefit that I see is that I can fly pure eCCR when the dive calls for it and to remove the depth restriction posed by the CMF orifice. With the rEvo controller this is a very simple change.