I am no engineer but I do understand the logic of the pivot/lever - the setting pin is fixed at one end obviously, but where the pressure of the sprung loop strikes it will directly influence the pressure applied at the other end (the trigger). If the loop is closer to the fixed end the pressure at the trigger end will be less - I wonder if modification or experimentation in this would permit an easier to set trap, with a more sensitive, and more easily fired trigger?
Also, and I don't fully understand why, the setting pin on the original traps is a much higher diameter than the setting lo