Quote: (Originally Posted by
Mark Chase)

MCCR you have to be constantly aware of whats going on. This really is a pain and it becomes apparent when task loaded with a camera or bagging up spidge, sorting line out etc etc.
PP02's are all over the place so an integrated decompression computer is a nice comfort blanket on a big dive. It theoretically tells you what you need rather than you having to guess your average PP02.
I am sure it gets easier and more instinctive but after about 20 hours on it so far I conclude its a pain.
In order for it to be safe it must have HUD.
Mark Chase
Uhm, strange, I dive my own MCCR and I don't find it a pain at all. Though I check PO2 regularly, I seldom have to add O2 unless I am huffing it, but then I know I am huffing it and therefore I know I will have to add.
As far as having to always know what your PO2 is with MCCR, I would think you better well know with an ECCR as well. Electronics and water just don't mix well. I have never had a problem of PO2's all over the board. It has been a non issue with me.
HUD, well I have never used a hud, and would never do so. I have two primary readouts, separate power supplies, etc. Of course we have discussed HUDs before. I do not believe in seconday readouts, and most HUDs are just that. They are also power pigs. I just prefer to see the numbers on my displays.
PO2 gauge
I also don't believe you need 3,4 or more sensors diving MCCR
How many sensors
BTW, I can't imagine ever trusting an ECCR unit and wouldn't dive one even if given one and the training to go with it. It is really a philosphical problem. An analogy on the phylosphy of MCCR diving and ECCR diving may be the differences between men and women, (other than the obvious differences), neither can really understand the other.
Dale