They were indeed smashing a jerkbait in 34 degree water. The brightest most direct light of the day turned them on. Sitting on the bottom in 10-11ft on a very rocky bank I could see them on the graph all day. We had a couple head butt the A-rig but that’s it. As soon as the sun started to fall and hit that rocky bank directly they switched on for about 20 mins. Definitely wasn’t easy, but the mission was accomplished. 20 some mph gusts all day on the river made it hard to even present a bait. 5 hours in and 3 fish in the last 30 mins before we had to motor back about 2 miles. This is winter fishing. Happy to have gotten out there.