DP's catch cats. Use sweet bait. Orange slice candys and marsh mellows. Best lure I have found is Dobbins coon candy, the bastards can't walk by that stuff. Leave extra marsh mellows and candy around trap so cats can get to it.
Close to where our barn cats are we use a live trap, not the one time use junk they sell at the store. A welded strong live trap is expensive but catches allot of them bastards. Eggs in the live trap work awesome.
i set 7 DP's out further from the yard. Culvert crossing, trail up the hill and any other spots we find coon scat.
we killed over 20 last year and this year we have got 10.
Eggs, and sweet bait will minimize cats breaking legs in your traps but will not eliminate the chance of catching 100%
Some DP's fire on push, some on pull or both directions.