we have had this conversation loads of times before buddy, i trapped over 150 rabbits one week back in september, about 70 % were adult sized and i only had one alive, its all down to the way and place you set them, i have trapped a good few in mk4,s , by accident and the trap was hardly moved , which means a good ,quick kill. like most traps , i think its the shock that kills not the power of the jaws
they are not made anymore , thats why they are not used as much,and its probably cos they are an arse to set , but they do catch rabbits ,they are too heavy and too expensive and its like every