I usually set 50-60% sets as dirt holes. Territorial sets and flats sets are most others. I only trapped on a couple farms this fall, 10-13 traps instead of 80-125 traps set. All of the 21 coyotes caught were caught in dirtholes, except for a few snared ones. Go figure?? Usually there is a more balanced number. It is now the best I have ever done with so few traps, several of them must have caught 3 or 4 coyotes.T.20