Dean, you didn't use JB Weld, hm? Then I don't understand why the carbon fiber rod split--unless, when you put the rod through, you cut one of the long fibers and weakened it. Can't see how CA would enlarge and break it. That stuff can be fragile if in any way those fibers are clipped--as with sharp threaded rods being pushed through them.

The fisherman's coil: forgive me I don't know the proper name of that knot, but most fly fishing rods have them. I googled "knots" and didn't find it. Maybe you can get luckier.

Here's what to do (if I can do this without graphics): take a 15 inch piece of very tough thread (fishermen use common sewing thread, but you can get thicker stuff, but common thread WILL work). With your left thumb, press one end of the line on the rod, starting where you want the coil and leaving about three inches of line under your left palm. Make a 2 inch loop running along the rod. holding the "top" ends of the loop under your thumb. Squeeze the bottom of the loop so it is very narrow, making two parallel lines. Then you have a thin loop running along the rod with a three inch tail under your left palm and the other, long tail, hanging down from the thumb. With your right hand, starting at your left thumb, wind the LONG tail tightly over the loop and rod time and again, going from left to right. It will look like a spring wound around the rod. Keep the coils reasonably tight so they secure the loop and don't go over one another. When you get about 1/4 inch of coiling along the rod, you'll still have a loop to the right. Take what's left of the long tail and thread it THROUGH the remainder of the loop.

This is tricky. While keeping the coils tight, slide your left thumb over them and press to secure them. Pull the long tail (now considerably shorter) tight. THEN grab both tails and pull. If you've done it right, the thread will look like a tightly wound spring around the rod. Keep pulling (but don't break the line; good luck) The coils will bunch together and the previously LONG tail will actually go under a coil or two, held tight.

Trim off both the long and short tails. Voila, you have what I call a fly fisherman's coil, tight around the rod. CA it. You can make the coil as long as you need... a quarter inch, 3/8ths, 1/2 inch, whatever you think you need and can execute.

[Maybe some good samaritan here can find a link to graphics for this execution. I don't think it's really a "knot."]

It takes some practice to keep the coils adjacent and not falling all over. And if you let the left thumb loose, the whole thing falls apart. You may want to TAPE-tack the bottom of the loop to the rod. It'll help you get started right. But it is a very efficient and super strong way to keep a split rod from splitting more. It's a knot worth some time learning, like the bowline--for other purposes.

My words seem clear to me, but I've done it many times. My wife got it on the second attempt. Try it. You'll hate me--but if you get that coil right, you won't have to worry about the split carbon fiber.

Jack (believe me, I'll hear you cursing me as you try that coil the first couple of times :-) )