Yeah it was alot of fun bringing that monster in at the time it was bordering on frustrating due to holding a rod with metal parts in the air during a severe thunderstorm with tons of lightning the rain was not coming down in buckets I believe they were using giant garbage cans . caught that one during the day actually when I target flatties I tend to fish all night from about 6 to 4 am this has been the best times for me I have caught them first thing in the morning before the sun comes up as well a guy over at xtreme catfishing said " Small flathead (10 lbs. or less) are prey and feed in areas and during times that will avoid large predators. Large flathead are almost completely dependent on the weather (cold/storm fronts) to tell them when to feed. Sometimes an unnatural rise or drop in water level will trigger a feed. Occasionally, an annoying bait placed to close to a resting giant gets eaten. My biggest flathead always come during a storm. This is just my experience ....... during Spring and Fall. Also, I've read several flathead tracking studies and they all either ignore or under-appreciate the significance of weather in a catfishes behavior." which is my experience as well if there is a front moving in or leaving you will have a better chance to catch them a guy I used to work with told me they sit and watch the weather channel for a certain area in maryland and when they see a front moving in or going out at the same time the tide is either coming in or going out and a full moon helps they grab their gear and go with very little notice last time he came back with over 200 lbs of blue and flathead fillets so what they do definitely works. I know the weather affects them but I do not know the science of it. i throw out what I know they like to eat and wait for them to find it.
now I have heard of some weird stuff that works like for channel cats best formula I have ever found is 1-2 lbs chicken livers half cup minced garlic and 2-4 cups of strawberry Kool-Aid throw this all in a lock-n-lock (you do not want the lid to accidentally come off) set it out in the sun for 3-5 days then when you put it on the treble take a strip of nylon and wrap it around it to hold it on. must have a strong stomach to use this stuff after about a week it resembles some kind of primordial ooze, but it is very effective. during the spring and fall I catch the most flatheads as they do not eat quite as much during the summer when they spawn not sure of the truth of this just a personal observation of recent years. the best bait for flatheads is always alive and kicking threading them on the line works the best as it keeps the bait alive longer than hooking them I use a 12" dollmakers needle for threading larger bullheads on the line then I snell the circle hook to ensure it will not come off flatheads tend to attack from behind so having the hook back by the tail makes sure you grab them. if I don't thread them I hook them behind the dorsal fin. sunnies and blues work well but they give up fighting to get free to soon white perch and bullheads fight tooth and nail to get free for hours on end and make alot of noise and splash around which of course attracts the target fish.
i spend many hours researching what may work better than what I have been using to target the fish I love to catch