Even if the person doesn’t want to extend their ski trip after taking a ride, I could still see them wanting a second can to re-load for the skin out, assuming they weren’t injured.
Not sure if the user was talking about taking two canisters with him into the BC. Thats' fairly impractical IMO due to weight of a loaded cylinder but possible of course.
On the Snowpulse deflating and repacking the ballon is fairly simple although it has to be folded in a certain way to ensure good reinflation but that would not be a problem in the BC although would take about 10 mins to do right. Difficult in high wind or a blizzard.
Rearming the cylinder mechanism is very fiddly and involves changing a tiny weeny o ring on the firing pin ( for want of another word for it) that you don't want to drop( or will never find again) and coating it with silicon grease. You have to use plastic tweezers they provide so that gives you an indication of the fiddlefactor but no air in the BC so he'd need a second complete head mechanism and filled cylinder as well.
Never heard of people taking two cylinders into the BC, but have heard of them taking two cylinders to their base where getting a refill ( dive or paintball shop) not possible.
