Not much guiding with 4” of snow and ice over it lol!

It’s icky out up here.

Just a stake punch hole where that black spot is with some lure in it. Backing eliminates real estate and the smell is 100% out of their reach and has to be “earned”.

Thats as important as guiding IMO.

Never ever put the smell where they can (easily) get to it.

I use two for my cat sets, but that's because for an exposed walkthrough, you are trying to draw a cat over the trap. Ill have one lure on one side of the trap, and a different one on the other. Normally a gland lure and curiosity lure. The thinking behind that is the cat will check out the lure on one side, then want to check out the other sent as well which it will have to step on the trap to do so. Cats gets curious and bored quick, two scents keep then interested. The call lure is just to get them in the area of the set, because cats love skunk.

Ive used the same lure on both sides before and have caught cats but stopped after I got a trail cam video of a cat smelling one side for awhile, getting bored, then turning around and leaving.

But for grey fox or coyotes, I've never seen the purpose of more than one lure for flat style sets, and lure and bait for dirthole style sets.