NO KNOTS! The fish doctor, Ernie L, uses the inline Spro swivels. Im not sure how Tom from ATOMIK is doing his, but I would imagine its the same. When hooking the copper to the swivel it is more of a wrap than a knot. I need to learn how to do it but if you would like I can take a picture of it tomarrow and post it, but its not going to tell you how to do it.
I have my copper in all the time now. In the Orleans Pro-Am it took my biggest king. Since I have been running it the set-up has taken a fish every trip except for this past weekend. Kinda big and bulky, but it WORKS.