Its been pretty hard for me to catch a "coon raiding the sweet corn patch with an ear of sweet corn for bait/attractant". In other words an animal on the move has its senses and memory set on a known food source so why bother with a tiny smell of another scent? Summer coyotes for me, aren't stupid but they are stupid (like me) when it comes to a pattern. So this might help: make a buried bait set near one of the known scent (urine) posts, anywhere from 10-15-25' away. I use a 3"- 4" auger on a battery hammer drill (have used a skid steer on the farm here too!) as the digging tool and use as much stink as you can get in the hole. Decomposing meat, eggs, etc. even sour milk or something with a lasting stench (try a dillo and let us know), cover lightly and set trap at your pee-post. I call this a decoy set as here it initiates a rolling/territory response. For me, even if they don't roll, they will pace and look to relieve themselves and you guard the spot. Most of the tough coyotes I have learned from, are cautious and pace or at least stop to "nose test" a smell before they move on. Set your camera up and observe their reaction to that putrid smell. A trap at that pee post usually will snag the "tough" ones for me. I (and I suspect everyone who observes wildlife) would never become the fur harvester they could have become without observing AND interpreting a dog's actions on the trapline or hunt. A dog's sense of smell is a given but their reaction and response to those smells is a dictionary for anyone interested in animal behavior. My experience............................ the mike
