Fair enough, makes a whole lot of sense when you think about it, though they're probably a bit more wieldy than the yellow lump though
Just out of interest, are you planning to have a fill of lime permanently sat in the scrubber for any eventuality - weeks and weeks at a time, or just fill it at the beginning of the trip and empty it at the end (maybe get a sneaky sub-6m dip off the thing before you do).