| Sorry for the late reply.
I use the 60% jet pretty exclusively and match the cylinder % to the dive I am doing. I have a low vO2, so hyperoxia rather than hypoxia is usually a problem for me. If you lean the mix too much you have a very narrow window of acceptable oxygen use. Using this jet will give me 172 minutes fo gas from full to empty on a 5L / 200 bar tank.
For deco I use a single 7L / 232 bar which gives 1600+litres / about 52 [I think] cu ft of gas.
I have soem spreadsheets you might find useful, drop me an email. |