This idea may already be on the BOC, but just thought I would pass this on incase it hasn't. If you are having a hard time getting fish to take a circle hook, try "bending" or "off-setting" the hook a little. Most circle hooks I have seen (I use team catfish circles) are flat, meaning if you lay them down on a flat surface, the entire hook will touch the table or surface. Octopus hooks are offset, but don't always get the hook ratio as circle hooks. Try holding the gap of the circle hook in a vise, and bend the shank a little bit......key is "little bit." Hope this helps your hook up ratio.