Quote: (Originally Posted by
doug allen)

Wow....lights are going off.....Suppose this......say the diver on CCR entered the water with a .4 setting....and forgot to change to .7 @ 20 fsw and then forgot to set the unit to 1.2 at the intended depth......according to my calcs...narcosis would be really really significant.....this relates to a real life case...any comments / confermations.
That all depends on where you stand on this issue
Quote: (Originally Posted by Mephisto26)
What about the narcotic effects of O2...anyone...
I have gone from a N2 rich loop to an O2 rich loop and experienced a pronounced change in perception and narcosis.