I run duke & z trap. I’ll run a pile of each & often a 1 of each in both spots. As of TODAY- I’m gonna say duke catches more than z trap. I thought it would be other way around. My GUESS is - the z trap is harder to trigger. Often times they are not triggered. So- I have to choose to set the trap really close to one of the 2 edges - push or pull - which makes it essentially a 1 direction trap. If I set it in the middle for push/pull - they usually don’t get triggered. I’m far from trap expert but I’ve caught a gazillion coons in these now & im not as impressed with z traps as I thought I would be.