Here are a couple of pictures of the CF pushrods.

What I've started doing for the ends is worth a description.
I wanted something to reinforce the ends in a couple of different ways. What I'm doing now seems to provide those ways. When I epoxy the short metal end into the CF rod, I also wipe epoxy along the outside of the CF and the metal. I've got a piece of heatshrink waiting on the CF rod and slip it over the glue area. It covers the mess AND......... When I hit it with a heatgun, I hit the ends of the heatshrink first. That sort of seals the glue in. And as the heat shrinks the tubing, it also liquifies the epoxy. It appears to squeeze epoxy into the connection to begin with, and then squeezes excess out the ends. The heatshrink actually absorbs a bit of the epoxy and becomes much better support. I've done a test build to have something right away to destructive test.

The result is shown.

BTW, the light gray tubing that you see sticking out of the fuselage tail is cut into short lengths and put over the finished rod as it's put into the airplane. A short length supports the rod at the opening in the picture. Another short length is halfway down the pushrod and goes through it's own balsa stick "bulkhead". Pushrods that're supported in a couple of different places stand up over the years better.

BTW, heating the ends to shrink the tubing heats the epoxy. It insures a stronger cure, and it gives a shorter cure. After I wipe off any excess that squeezes out, after just a few minutes, the rod can be handled and installed.

BTW, I usually use solder clevises on the insides. I only had threaded ones when I did this Tiger60. The inside ones have since been epoxied in place. And I guess I should mention that I do the soldering BEFORE I glue the piece into the CF rod.