I've been fishing for flatheads all week. I've been catching 2 or 3 every night in about a 2 hour time frame. They've all been in the 10lbs to 20lbs range. I'd really like to hook up with a monster which I know are in this river. Would you guys recommend moving to a new spot or should I stay in the same spot where I'm already catching a few and wait it out for a big one. I am already using the biggest bullheads I can find for bait, so using bigger bait is not an option. Also I'm fishing at a dam on a small river and generally start fishing right at dark. Any other tips to hooking up with a huge river monster?