Quote: (Originally Posted by
RonMicjan)

If you never run manual, its much easier to get complacent and let the unit run itself, so the diver is in la-la land, trusting the unit and when it quits, there is one extra layer of attention that is missing
I generally hear my solenoid fire about 3-5 times during a dive,
Ron, that's condescending bollocks. There are plenty of people who let the electronics run the unit and yet still keep good track of their PPO2. Anyone with a HUD has MORE immediate understanding of their PPO2 than does a diver with only handsets who is running a unit manual.
By your own admission, three to five times a dive, you have lost track of your PPO2 by a significant amount (where significant is defined as greater than the amount you were planning to allow your PPO2 to vary by). Yet you suggest that by letting the unit control PPO2 where I have a HUD giving me real time feedback on a CONSTANT BASIS, I'm the one in la-la land?
If you are happy to trust the unit three to five times a dive, then why not let it do it's own thing all the time? You are already trusting it to keep you alive after all...
If I'm letting the unit run itself, I have a lot more noticable indication that something is going wrong (flashing lights) than you do in hearing a solenoid firing - so I'd suggest it's me with the extra layer of attention (I have both flashing lights and the sound of the solenoid) than you do.
Mike