I used an EAC a day for the two diving days in Florida and I can tell you I was pretty close, probably around 66% used. That's 4 dives a day for up to 3 hours. Some of those dives required a bit of swimming and efforts (to get back on the boat after getting lost
)
Strangely, both sides of the unrolled EAC were hardened as opposed to earlier unrolling which seemed to be only on one side (when using 20% of the scrubber).