Yaz, I have never used pan covers and haven't had to many problems without using them. Maybe I'll start using some and see if that makes a difference. I do remember thinking when I made the set that I thought I was a little deeper than usual, that could have been it. Thanks for the advice. Coyotes are definitely crafty little fellars. I pulled my traps today since everything is gonna freeze this week, probably wait til next weekend and get them back out.