Back in the day I did a lot of tinkering with offsets with the old Monty 1.5s round jaws to make them a more efficient dry coon trap and to treat red and grey foxes paws better. Long story short 1/8th inch performed best on all species with 14 inches of chain to the anchor with 3 universal swivels. When coyotes showed up I added lams, and had JC make less powerful Lightning springs. They held coyotes till the cows came home. But the misses were off the chart but, it was very paw friendly to foxes. Today if I was going to trap live market fox my trap of choice would be the MB450 closed jaw and I would probably do a bit of grinding to some to compare. Cast steel files and grinds easy.... Wide smooth jaws with ample power to keep the paw in place without tendon damage is not easy on every fox that steps on the pan. For all species 3/16th performs best for fur trapping, with the exception of wolves from what I gather.

Just my 2 cents

I don't trap foxes, so I haven't weighed in here. But since it seems to be devolving into a closed jaw vs. offset argument I'll put in my two cents. Closed jaws are better for preventing movement inside the jaws. Great on a 24 hour check. But they do cut circulation down so that feet go to sleep, and on a longer check, especially in cold climates they can cause freezing of feet and or chewing of feet. Then offsets are better. It is a proven scientific fact that jaws with teeth are actually the most humane on larger canines, this is why they were used to live trap and transplant wolves. But they look cruel and even in the few states where they are legal on dry ground I wouldn't suggest ever setting them were a dog might possibly show up or were anybody might see them.

Beav and i are friends and we give each other jabs at times and i can see where to an untrained eye it may look different. But trust me we are just messing with each other. Sorry if it kept folks from adding to this thread and or give the op heart burn it was not our intention.
I can assure you what we wish for in the end is to not turn a 4 legged critter into a 3 legged critter.

First off I apologize to you Beav, I was havin a bad morning.
I was short with everyone today. No excuse.
To the OP. I like Bridger1.75 with outside lams and I grind a 1/8" offset after I lam the trap. I remove the baseplate on the traps I set in the woods for grays, a little lighter. And when it comes to grays I try to target backfoot catches. Most of the damage on a gray in a heavy trap can't be seen until it is skinned. Just my observations
And I believe chain setup and attachment are a very important variable to consider.
And a 1.75 will hold a coyote but the pans and dogs leave something to be desired.
I don't want any foot damage, I skin to claws on everything I can.
I don't post often on these threads because I'm still trying to find my perfect trap. And I hope I never find it.

P.S.
Beav I do want to reinvent the trap. Every single day I'm breathin

Most of the damage on a gray in a heavy trap can't be seen until it is skinned. ..............
That has not been my experience.The best trap s I've ever used around grey Fox were either stock 11/2 coils or the soft catch in the same size.The soft catch treated them very well but greys,unlike reds,like to chew on the padding.Keep in mind I've never used laminated 11/2 coils.1.75's and No.2's did not treat them well at all.Damage could be excessive.We never had greys here,when they arrived they were everywhere.After a few years they disappeared,apparently from distemper so their scarce to non existent now,but if they were to make comeback I'd try the 450 or the 550 rubber jaw.

Caught and held 4 coyotes in 1.5s this season, no problem.

Nice pics Author trapper, great job. You been learning some new sets down there?