Re: securing bait on a cubby or walkthrough set
if your worried about the exposed pan, which shoudnt matter for cats, just toss a handfull of peat or pine needles over it. if you think cats (or coons) are getting in and out of your cubbies without getting caught then your trap placment must be off some. try offestting the trap to one side or the other. the pan should not be in the center. you not have to rebed the trap just move the blocking/guiding.
if you are sure its cats or coon stealing the bait inside the cubby then set another trap right inside just in front of the bait.
i'm no cubby expert as most of the cats i've caught are non-target in dirt holes or flat sets but thats whats what i would try if i was you. good luck
Now your diggin' where the 'tators are!