I have mixed luck using similar with more pull outs than I care for
(Pull outs verse knocked down snares) I went back and forth trying different sized cable, locks. loop size, and cable type-1x19-and 7x7. I had settled on 1x16th -1x19 thinking the stiffer cable would hold a better loop and give a better chance of a beaver getting in the loop. I had numerous pull out. Cable out straight with the lock closed,-"Till" I listened to a local long line trapper Jerry Braley who uses alot of snares, and even catches many otter in these beaver snares. He uses nothing but the 7x7-1/16th cable, and the 1/16 th Cam Loc. (Made from a 42 inch cable)He mentioned catching beaver by the toes. That was something I hadn't done. (Had Caught them by the front foot, teeth, nose,tail, but never the toes)
For sure I have nocked down snares, now that I use his type of snare, but very few have the lock closed tight.
I checked one set up yesterday and had two small beaver out of 4 sets. The first set was up abainst a bank with the feed pile on the other side. Both these snares were knocked down, I think? the beaver traveling down to the dam, or around the pile ran the bottom and hit the snares but were too low to get caught ( About 2-1/2-3ft of water).I added two snares under the first set. --Maybe I'll have 4 knocked down to reset next time?
One of those small beaver was on a like set with two layers of snares and did get caught In the bottom two snares. We have to be 10ft from a beaver house here, and It's possible he was coming out of the house and hit the loop.
Darcy Alkerton a well known Canadian trapper uses 1x19 cable. He catches a pile of beaver in snares. He used to post on trapperman, Not sure if he still does.