They did put some Leech lakers into Lake Wissota, Chippewa county. Not sure how they have done. It's been about 6 years ago now. They were trying to see how they coexist with the pike which are getting to be a huge problem in the northwoods. I would recommend trying to keep every pike you are allowed.
I think we need higher limits. We need to keep the 40" fish that the tourist catches on a bluegill or a crappie in the lakes. If they die so be it, but you just can't keep a fish for the sake of it may die. That being said, I don't really think the size limit is as big of a problem as the spearing is.
I need to update/comment on my statement re: Boulder. Don't get me wrong, I have a cabin up in the northland and have friends in the Boulder/St. Germain area and just love it up there and will continue to frequent the area. But......
People ask why to mount one when replicas are available? Because replicas are fake! I can spot one a mile away compared to a skin mount and the replica does not look as good.