I use mainly use cubbies with 5-10 lbs of fresh beaver meat to target bobcats. For a visual(if I use one), I hang a bird wing or a small foil tart holder near the cubby where the wind will move it around. As for lure, I make my own. I empty all the oil sacks from my beaver into a quart jar and add anise and catnip oil(roughly a table spoon of each). I then add glycerin until I get the consistency I want, as well as about 4 TBL spoons of Borax to preserve.
Cats are not hard to trap if they're in the area of your sets. Being on location is a big factor in catching cats, same as any other critter.