Case IH came out with a helper spring kit that mounts to the right end of the header and hooks to the pipe the sensing pads are bolted to. This helps take the stickiness out of the cable. I don't have the part n with me right now but if you want e-mail me I can get it for you.
You dont give much imfo when the head hops. If it hops when you drop it to the ground it could be that it is dropping too fast and you need to adjust the drop bolt at the valve stack.If you cant get it contact your dealer . Good luck.