I just got into flathead fishing this past July and am really hooked on it now. I have never started a season in the early spring, so I'm not sure about a lot of things pertaining to early fishing. My questions are: 1) How early in the year can a guy consider making an effort to fish them. Keep in mind that right now the Mississippi river, in Wisconsin, has a foot of ice on the major portion of it. That should start to change in the next week or two. 2) After the ice goes out, at what temp do the flatties get active?