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The 32% jet is a waste of good nitrox. If you have a pO2 meter you can work out your vO2 [Oxygen consumption] and then tune your cylinder gas to a slower flowing jet, I use 40% through the 60% jet to get maximum extention [down Amy-Ward], although this will lean the mix I breathe to 30% under a heavy workload.
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Freeflow must have a lower VO2 than me. I end up with 28% in the loop if I put 40% through a 50% jet. Now going MCCR.
Neil