Quote: (Originally Posted by
Jonathan)

. . . or look at three gauges and have it clear infront of me which one is off kilt and, more importantly, what my PO2 is?
You have neither with certainty under
any system.
DrMike is closest when he proposes a system with 4000 cells of varying characteristics . . .
even then the best we can say is that the odds are
much better.
--dan