How are you guys setting bottom edge sets after freeze up? Same as you would otherwise, but you chop an ice block out instead? Or are you just setting between 2 open holes?

Very seldom would I have to break through much ice early on, but if I had to I would rely on previous years locations. Going in cold I would do bridge walls and pick steep banks if I had to. It sure would slow a guy down thats for sure.

Same locations as you would before freeze up. The only exception is that you might need a little deeper water depending on how thick the ice gets.

That's what my plan is anyway, just didn't know if I should be setting on top of, or under the ice.

What advantage is a 120 over a 110 other than some power and speed, for a 2 pound animal.....? Genuinely curious if you could elaborate.

Stabilizing is an advantage for the 120

Back when I used 110s for mink, I had mink still alive, likely hours after the catch. Especially with suitcase strikes. They are usually a weak trap. I will say that new Dukes are powerful, and would probably result in quick dispatch. And of course, as pointed out, a 120 is much more stable in most cases.

That would depend on how you hang your 110 in my opinion.

Interesting about the live caught mink, good point. I do have some old 110s from the 70's that are more than paid for with soft springs, no doubt.

I am just not impressed with the 110s power when not in a drowning situation. The last big buck mink I caught was alive when I got to him. By the time I took the 110 off of him, which was directly behind the head across his throat/airway, he was ready to take off. I could tell he had been doing a lot of struggling by the amount of frozen ground and chain he had messed up. I would much rather use a 120, or a 150 and have him dead instantly.
Again, this is just my opinion. I have also killed animals 2 to 3 times that size with a good new 110. But every time you set a trap it isn't quite as strong as before. I just know my weak 150s will make a new 110 look like nothing. Mostly personal preference, but that preference is coming from a few different past experiences.

A properly adjusted 110 with a strong spring will neck catch and kill a ground hog, I get that some guys have had bad experiences but a mink is no powerhouse mammal. If animals had MMA there would be no contenders that were mink or muskrat, they are just built too light. Just my opinion, set what makes you happy.