I think the best way to fix it is to take the same 2/56 and screw it into the nyrod. Great Planes makes a connector for the control horn that the other end of the rod will fit into and then screw the set screw down tight and you are done. Another method to fix it is to get some 36" long pieces of 2/56 rod and use the outer nyrod as a guide and just replace the inner nyrod with the new 2/56 rods. You can only do it this way if the outer rods in your plane are close to being straigth and there is no binding on the metal pushrods once they are slid in. I gave up using Nyrod years ago because every flight, the plane needed to be trimmed. It was because the Nyrod would expand and contract depending on the weather. Hopefully over the years that has been corrected. Good Luck, Dave