Im in the same boat you are big guy. All I have been doing is reading the forums a lot. Read back in the previous posts from last year too. This forum is good and so is spoonpullers. Try this one as well http://www.lakesimcoeoutdoors.com/forums/?showforum=13.
Then I go out and try the things i have read. To date i have no monsters in the boat but I have improved each time out.
Another thing I have been doing is monitoring Channel 10 on the radio. Sometimes guys give out depths and colors