Interested in this as well. Do you brush the trap in, cover the top or just leave open and place chicken in the live side?
for cats I have never brushed it in just covered the top to keep the bird dry and to keep them from jumping on top and springing the trap. for coyotes and fox I do brush them in on both sides . don't know why the dogs wont go in the trap with out being brushed in . from my experience the cats don't seem to care they are more focused on the chicken . but hey I'm no expert this is just what has worked for me . some may have better ways , I always try new ways to see the response . put a game camera on your trap in video mode and watch how they react , that's what I do.