Mdemon

As DrMik/RichC/DW said, what the Hell's the point in having electronics if you then ignore them and do a sloppier job by doing it manually?

Your training is to let the unit handle the O2 and to monitor it doing so. So do it! Jeez, talk about adding unnecessary complexity for the sake of it! (1) Why not clip a handset in front of one eye using an old coat hanger? You'd have an even better idea of what your PO2 is doing then.

Maybe we use thicker hoods in the UK, but I only hear the odd firing of the solenoid. Most of the time I am busy doing the dive. What I have got time for is relentlessly checking my handsets. In other words, doing the basic stuff right.

If you are in the habit of checking your handsets regularly, there is no difference between running a unit mCCR and eCCR (monitoring-wise) except for your actual PO2 will be held steadier using the latter. I can think of more sensible ways of making Rebreather diving safer.

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