We love setting under ice for beaver. We usually have the whole place to ourselves as most have given hunting/trapping up for the year. We mostly set baited pole sets with no.4's, no.14's etc and 330's. If we are lucky enough to find runs we'll set them up with 330's. We use any green twigs we can find, for the 330's its a bundle about 1 1/2"-2" around and 7 or so inches long. Sometimes with the foothold pole sets we'll use a little bigger bait. We can use snares under the ice but Ive only tried it a few times with little success. Thought about ordering some to try this year as they sure are alot easier to carry.