I have never used the King Kat Deep Sea Circles but plan on giving them a shot this year. The 1st thing I noticed was the massive size difference between the two. Below is a picture that shows what I mean. The sizes of the King Kat Deep Sea's (Red Hooks) are: 15/0, 13/0 & 10/0 The sizes of the Gama Ocopus's are: 8/0, 7/0 & 6/0. As you can tell the Gama 6/0 are bigger than the King Kat 10/0's. The Gama 8/0's are about the sam size as the King Kat 13/0's. You can prob tell the difference between in the thickness of the hooks too. The King Kat are 4 times as thick. I dont know if that is a pro or a con. Let me hear what you guys think.