That issue of Fish and Fly is written by Kevin Feenstra. He also did an article back in 2002 where he profiled his Emulator (a sculpin pattern). I have fished this pattern, and modified versions of it, with a lot of success. Another great pattern that came out of Michigan is the Zoo Cougar. This is a very good streamer / sculpin pattern for the great lakes. Schmidts rabbit muddler and Maddonna are also very effective.
Although I love wets and speys, streamers and sculpind swung on a sink tip is a great way to more traditionally fish the great lakes with a higher rate of success.