Up the river there is a bunch of Big Snook and quite a few Red fish. and trolling is one of the better ways of catching these up river Snook.
this has been working best the closer you are to fresh water. on The Peace River the old Fort Ogden trestle and up, on the Calusahatchee Pst the power plant.
Troll the out side bends of the river and close to shore the best lure right now with the water color is a Savage gear Mp-95-gb this lure is a standard style lipped lure and almost 4 inches long . and just works trolling speed between 2 -3 mph. And keep as close to the shore as possible
Go luck on your 40 incher