Mink box & tunnels are place in the right spot. Experience & knowledge of Mink will determine placement. I don't think a Mink will be pulled off his travel route with a misplaced, baited box.
A Mink box is another tool to use for the right situation.
I know some Pa. guys that catch 50-80+ each season. I know two guys that stop at 30-40, because that's their goal each season. I think they are impressive numbers in our state.
Dedicated, hard working, long miles day after day.
These guys have their standard sets, but rely on a variety of sets, including tunnels & boxes to cover three levels of Mink travel, i.e. waterline, bank & top of bank.
I've run long Mink lines in the pass plus rode with two top notch Pa. Mink trappers. When the situation happens, a Mink trapper covers all three levels with lots of traps and a variety of sets.
Just saying, There are folks still dedicated to Mink each season.