I live in an area with lots of good dives and lots of canceled dives due to weather. Since a mix might be used for a dive a couple weeks away rather than the next dive, I look at the likely max depth over the next few dives when choosing O2%. I also like 1.3 but that is an old guy conservative preference.
Two final notes
NDL is algorithm based so it will vary a bit from one computer to another.
PO2 is physics.
Two final notes
NDL is algorithm based so it will vary a bit from one computer to another.
PO2 is physics.
