I just found this website and got registered. I am assuming you already went on your trip and I'm extremely jealous. I've fished the Sylvania lakes multiple times and have had a blast every time.
If you haven't gone yet, for me, burning a white spinnerbait has been very productive for me and an absolute blast. Soft plastics (hula grubs) fished deep during mid day also has worked well. One tip I would give you is every time you're paddling somewhere, put on a crankbait and troll...it works great and really can help locate the fish.
If you have gone already, I'm going in a couple of weeks and am curious how you did and what worked for you.
Thanks