I’ve had such better luck with bigger (taller) traps than shorter ones.
I went to using bobcat sized traps and haven’t looked back. Gives me flexibility in size of animals I can catch and I get such a higher catch rate and yes on coon too.
Getting them to commit to entering a bigger traps is more productive.
I ran a lot of cages over the years. Summer damage work, winter fur trapping. Barns, woods and coon trails, you name it. Ran coon sized cages right in same locations as I did the larger bobcat sized cages. Wasn’t even close on catch rates. Bigger works better hands down.
I don’t know if it’s a matter of coons having to squeeze into an opening. I wouldnt think that would be an issue. They squeeze into some pretty narrow openings in hollow cottonwoods around here.
But bigger size cages I’ll run those all day long now over coon size traps. No fussing around with stabilizing and trying to force them all the way into a smaller trap. Yes those traps work fine but I can run larger traps here and have more success plus I have something I can run for cats too, and no way I can get a cat to squat down into a short trap. Narrow and tall, yes, but not short. Coon seem to work the bigger traps much better too. I checked way too many empty smaller traps over the years and took enough coon in the bigger traps in same location to look back now.
Coon damage work in summer near sweet corn and garden issues.