The RBS that is in that link coughed up pellets when I caught him. So I haven't actually seen him eating them, but he clearly was. I find myself catching the RBS a lot and I know I don't have that many of them. So whether they're just stupid or super aggressive I don't know.
What size BG are you suggesting to remove via the traps? My guess is the really small YoY fish should be kept for forage.
Also, I do think that at least some of my SMB are eating pellets. The hatchery I bought them from claimed they were feed trained, but I bought them as fingerlings and started feeding them pellets day 1.
