For the river I fish 49# is the lake/ river record. Last year SangamonCatKiller caught a flathead in the 40#plus range. In 04 A 45# was caught. But were fishing a small river that you cant get a boat in. I will have to say there's a 50# in our river I dont see one over 60#. In our river a 30# is a trophy. In big rivers like the mississippi there's no doubt there's record size flatheads.Whats the top end size that you know is being pulled out.