Let the baited line out first and then attach the rubber band and weighted line out once you have, say, 20 yards of line behind the boat. This will allow you to troll your bait freely a good distance behind the boat while still being able to adjust the depth. Once you have a fish on, the pressure will cut the thin rubber band on the sharp, braided line and let you fight the fish freely.
Anglers should troll live baits slowly. You might want to start by using your trolling motor; if that's not doing the trick, switch to the big motor to speed things up a bit.
Whether you choose to troll on the east side of the state or drift over oyster reefs on the west, your chances of catching a redfish are great. Louisiana's experiencing a redfish renaissance, with world-class fishing within a short drive of any city along the coast. If it's redfish you want, Louisiana really is the Sportsman's Paradise!