I bought some 8/0 gamakatsu circles a while ago. Tried them out with no luck. Went fishing 3 times and never hooked anything. Had plenty of bites. Never caught any flatheads before. I'm guessing it works better for flatheads. Or my hooks are too big. I use the gamakatsu 4/0 j hooks and they work great. The lake near me has some 5lb channels. And there is plenty of room for the 8/0 hook to fit in their mouths.