As soon as I saw OConnor's name I knew it would have a single trigger. From the articles I've read of Jack's about shotguns, I think he was writing about them because he had to. He exhibited limited understanding of upland game hunting and the proof is his advocacy of a single trigger gun and a boat anchor Model 21. He looked like a big man so maybe a 6.5 pound 20 ga wasn't so much of a burden.