Incidentally I think that argues for using pretty rich dil mixes that are in line with what you are using for a setpoint. I.e. EAN32 at 30m/100ft instead of air where your dil flush validates function at 1.3 instead of 0.8.
@tbone1004 I read on you other posts that you tend to run a lower set point @ 1.2 on your CCR. Are you proposing for a 30 m dive to run a rich dil higher than your high setpoint and breathe it down? I was taught to target a dil mix with 1.1 PpO2 at max depth, when I asked why not 1.0 or 1.2 I never really got an answer? Feel free to move to new post if not relevant to O2 cell longevity strategies of the OP.