I cannot remember, I would have to dig through things, but seems Newt had a pretty good DVD on snaring muskrats and mink.
Snood system of snaring by Raymond Thompson is about snaring rats
I still use snares for rats in suburban areas one because there cheap two because there almost invisible unless you know where they are located
It’s been my experience that rats go down pretty fast in a snare because there is seldom much evidence of struggle