I have been fishing the flowage for 25 years, and my grandfather since 1956 (I have all his notes - and have studied them)... Remember, the Flowage was much different back then. There are weeds in areas now that were not there 20 years ago. My experience has been that the Muskies I contact have been relating to structure, primarily weeds (shallow or deep). I have seen a bunch on mid-lake humps and few on rocky points, but I have been most successful fishing the weeds.

Best of luck out there!