We drove that night, but like you when i am on foot i get them when the bag gets too heavy or when a natural break presents itself. The rabbits i catch are dog and ferret food, so if we are driving, then they all get cleaned out when the night ends.
Do you gut them as you go when ferreting or save until the end?
. its very rare i go ferreting but i also gut them as i go as i dont see the need to carry the extra weight about with the guts.