Just wanted to add some more information. I found this on the Wisconsin DNR website for the bay of Green Bay Door county. This may be what they are talking about at Sunset because the strain is unspecified. Also the northern x muskellunge below would be tiger/hybrid muskies.

Year Location Species Strain Age Class # Stocked Average Length
1985 GREEN BAY MUSKELLUNGE UNSPECIFIED FINGERLING 801 11.00
1985 GREEN BAY NORTHERN PIKE X MUSKELLUNGE UNSPECIFIED FINGERLING 6,126 6.00
1985 GREEN BAY MUSKELLUNGE UNSPECIFIED YEARLING 801 11.00
1983 GREEN BAY MUSKELLUNGE UNSPECIFIED FINGERLING 5,110 8.33
1982 GREEN BAY MUSKELLUNGE UNSPECIFIED