One more thing don't set the hook right away after you feel the thump wait at least 8 seconds reel in your slack if you feel the weight of the fish then let ...more him have it I like setting the hook sideway
Most important thing is your lure has to be on the bottom. I like heavier jig heads than most people use because I can get to the bottom faster. Like above, gulp ...more usually is the best.
I have always had luck with Berkley Gulp swimming mullet chartreuse or pearl/chartreuse mantis shrimp tip the hook with a lil bit of shrimp enhances the scent