COD Rudder on X-13

[RubiconAg]

So this weekend was my 5th trip out on the new yak that I picked up around the 1st of the month. As I was coming in for a shore landing on a local lake my rudder went crazy. I turned around to find that on of my steering lines (string/thin rope) has broke right at the attachment point to the rudder assembly . After closely inspecting the opposite side, it looks like that rope is beginning to fray in the same spot.

Has anyone else had this issue with their COD rudder lines?

This was my only let down when I bought the yak seeing the string setup. I understand the desire to use something that is not affected by the salt; however, my fear of the line breaking became a reality. I also have a Perception Caster 12.5 w/rudder that has stainless steel cables, better petal assemblies (rails and clips instead of straps and ropes) and secure steel eyelets and bolts as opposed to a string with a knot. Has anyone retrofitted a COD rudder with better steering mechanisms? Any help is appreciated.