Pizzaboy,
Where are you going on the French River? We usually stay at the French River lodge. The prices are decent and they are great hosts. We always had great luck with walleye behind Ox island. The back side of it has a couple shelves and a drop to 115 FOW. The walleyes hung on the ledge in 22' and 35'. Another good spot is the trussel (huge railroad bridge over the river). For muskies, Crombie bay is the spot. The musky fishing is spotty in June, July and August. September and October are the times for muskies up there. Pike are all over in little back bays and side channels. The smallmouth fishing has gotten better and better everytime we went up there. My father will be up there the same time as you. Here is there website http://www.frenchriverlodge.com/