Diver one of sixteen to die using high-tech gear

[DRE]

"My mistake instead of saying the fraction of 02 you are breathing I ment to say the fraction of 02 in the diluent bottle . When you mix your gas for the diluent bottle it has to be a breathable mix for the depth that you are going to
(ie Kamloops at 260 10/60)"

OK, so your bottom gas at max depth is fine, but isn't one of the perceived or advertised benefits of a CCR that it maintains a constant ppO2 for the inspired gas by adding O2 into the mix? So again, how do you know for sure that your sensors are telling you the truth regarding the inspired fO2 as you're shallower than max depth where I assume your solely drawing from the diluent bottle.

"As far as your scenario I feel if I answered it you would just come back with one three time as wierd and that isn't a game I'm here to play."


Could you give me straight answer on how you calculate your gas requirements (both primary and bailout scenarios) for a given dive, let's say Kamloops (max depth 260, 20 minute BT)? I don't think that's a far-fetched question as we're talking about a routine tech dive.
And BTW, I don't think that the above scenario was weird in any way - I just try to think through any possible scenario and what I need to do in terms of planning, equipment, etc to make sure I can make it back from that dive. I honestly believe that if you aren't this thorough about your diving you have no business being in the water in the first place.