Feel free to PM me. I would always set at least 2 within 100 yards of each other in a good travel area or trap stop sometimes 3. Every year Id catch at least one double. If your going to do a leanig pole always find one at the very least at a 45 degree angle more is better and set the trap at chest hight. I also tried to avoid pole set with a vertical leg anywhere close to where the trap is set. Look for the leaners that are hung up in another trees branches.I used to catch lots of them on almost vertical trees with the fence staple trick. My locations were anywhere from 1 mile to 20 miles apart. If your setting on fisher sign your ok, otherwise look for hardwood ridges with strips of softwood through them preferably the ones that come down to the road or the edge of something, be it a swamp, hayfield, clearcut etc. One of my best areas was where a softwood ridge came near a housing developement. I took 2-3 fishers out of this spot every year for 10 years. The landowners loved me because the fishers had been killing thier cats and/or eating thier food. One thing about 160s, while they work I found that some of the bigger males wouldnt go in them. It may be a little different with ground sets vs pole sets,but you may see some avoidence.I prefered 220s. But I know alot of good fisher trappers love the 160.