I want a lightweight trap the mink, or muskrat, can easily take down a drowner cable and be out of sight of predators. I run a multiple-day check and therefore do not want a mink dead in a large trap in shallow water.
After years of experimenting, at this point in my trapping life I've settled on the Bridger #1 coilspring modified with the pan from a Duke #1 1/2 coilspring. Shortened chain with extra swivel near the end of it. S-hooked to 3/32" GAC drowner cable.
Small diameter pocket with this trap just a hint inside the mouth. Will take muskrat, mink and 'coon down very easily. Out of sight and intact.
30" length or so of 4" drain tile, curled just a bit, up tight to a steep bank that curves with the pipe in shallow water and covered with vegetation pinned in the middle with a barn spike. If the bank doesn't curl, a tile spade can do the job in just a few seconds. One of these traps on either end, one lever just inside with the dog away from the bank. Mink can't see through due to the curl of the pipe. Quick to set up and will work with fluctuating water levels.
Again, I run multiple-day checks. For those fellas running a daily check with a bigger foothold trap that kills 'em right now and actually acts like a bodygrip that's a good plan. I believe the Beav has perfected that set.
Anyway, for what it's worth. Stock Bridger #1 coilspring on the left, modified on the right. Dang I love these traps.