Appetite is only part of the equation. Flatheads get big, and have the gape to match. I have a "pet" flathead around 3' long, and while I can't say what impact he's had on the fishery as a whole, I've never seen the WE fingerlings I added several months ago.
Yeah I wonder where those WE went? It really is a pet with that diet. I caught one on a spinner bait that was bucket stocked in my uncles pond many years ago. Now I wonder what effect that one fish had on the LMB and BG population in that pond.
