Markvan,
Sorry but that won’t work. Both WI and MN state in their regulations that the license holder is bound to the laws of their resident state. The situation on the Mississippi is a WI/MN border issue, so WI/MN residents have to pay attention to the rules of their resident state and abide by them. Any other state’s resident is not subject to the border agreements made by WI/MN, therefore gaining the priviledges of whichever state’s license he/she may purchase.
Just to be certain…………………a MN angler gets two lines on WI/MN border waters. WI anglers get 3. If the MN angler leaves the main channel and gets into a WI backwater, with or without the WI nonresident license, the angler can only use 2 lines. A WI license is not required to fish that part of the river so purchasing a WI license helps nothing because you are still bound to the priviledges given by your resident state.
Hope that clears it up for you! :O)