If you think any snare “fires” fast enough and closes sufficiently small enough to initially catch and hold a canine “right behind the ears”, I’ve got some ocean front property I’ll sell ya real cheap.
Sounds like you bought that property...
A properly loaded snare with a heavy lock will close down to smaller than wrist size depending on cable size. 1/16 will close the smallest. 3/32 will get down to a 3 inch roughly . 1x19 cable will do anything 7x7 can but better , except be a limp noodle... There's a reason the vast majority of snareman who have studied the way animals react and hit snares use 1x19. I ran video cameras on cables for 3 years around 12 years ago. 7x7 just can't beat 1x19. Especially if someone is forced to use CR. Anyway I'm not going to argue as it seems your mind is set. So let's discuss this 7x7 set up that can close so small just by falling ( even though once an animal touches the snare it is no longer falling straight down).
What is your lock and cable of Choice?
Amberg or full size camlock (none of that micro lock BS) on 5/64 7x7. Played with 1/16 7x7 for cats, but I doubt I’ll continue with it. Catch enough cats in 5/64 I see no need to screw with a second cable size and keeping crap organized.
When it comes to dispatch snaring canines, I’ve experimented with just about every snare system out there and have the numbers to back up why I say what I say and why I use what I use.
I’ve used 1x19 multiple times, with multiple locks, in multiple sizes, and have caught a LOT of coyotes with it. Enough to know how it stacks up to 7x7 in side by side trials in the exact same creek and coulee bottoms. I’ve got more than enough coyotes behind both to say quite confidently, I’ll likely never make another 1x19 snare for dispatch snaring canines and cats.