Not sure whether there is an easy answer to this, but here goes
Assuming several no deco dives over a number of days using 32% - is there any value in switching to a higher %o2 (e.g. 50%) for the ascent (at an appropriate depth of course)?
This came from a chat about getting some dives in with a stage/deco bottle just to get used to having one and then wondering whether there is any mileage in actually using it if its there...