If there is a current break behind a large rock and boulders (seriously, this rock is like 50 ft long and 10 ft wide, very BIG) but it's only about 5 to 6 feet deep, would there be flatheads there??? Does it need to be deeper?? My freind was fishing there for bass last week and left his rod out with cut sunny on it. He decided to go for a swim and when he came back, it was gone. This was during mid day. There is absolutely no current in this 100 ft by 50 ft pool. I have learned from you guys that this might be flathead country. Any input is greatly appreciated!! Thanks bros!!!