i have gotten quart bags of cheeks from a professional cleaner that owns a bait shop, the fish market on telegraph sells them buy the pound i bought some they were frozen not fresh. they are so easy to take out just start at edge with fillet knife and scoop out only takes a few seconds when i take my walleye to cleaners i take them home and zip them and take out all the red meat before i freeze them i tried to freeze them and then clean them before a ate them they had a little fishy taste but sometimes i like that as long as i know where the fish come from and was handled properly. but i never had a yellow perch that taste bad. now fish for supper tomorrow with homemade tarter sauce which hides a little bit of the fish taste