How do you feel about using a sparing amount of a stronger "call" type luring say 12 in down a peep hole that is lightly covered with ground litter?
I trapped coyotes during the hot Summer months for 25 years during Michigan's bounty era. My favored dirthole lure was my stronger Coyote #2 Super Range All Call. I favor the #2 because of the skunk musk in the formulation, not because I needed a strong smelling lure in July and August but because I believe the addition of skunk odor in a hole set lure is the best suspicion remover there is, making a wary coyote possibly think a skunk is responsible for the odor and fresh digging. The secret is as you say Farmdog, using common sense when applying lure. I learned from experience how much I could use and accomplish calling an animal for a reasonable distance while not overwhelming their sense of smell in warm weather. Like most other novice trappers, when I first began trapping coyotes I thought that if a little bit of lure was good then more is better. Once I gained more experience and learned to back off on the loud call lures or to use a milder lure to begin with then the results were quickly convincing.