Im not familiar with the BMI nbr 3 coil but if you are familiar with the northwoods, bridger, montgomery nbr 3 they are good yote traps. Everyone has their own idea and after you trap yotes for a while you will too. There are traps made specifically with yotes in mind like J.C. Conner jake trap and MB 650 ect but you pay for them also. Shoot some more questions and we will help out.