One minor point here. I posted a procedure that I use to secure the steel rod inside of the Sullivan rod using an electric drill and some CA. Works fast and is very secure.. but you have to do the joining carefully but very quickly and all at once because if you stop the drill rotation to soon, the rod will sieze and you won't get it out. So, a little forethought and planning before you actually do the joining works wonders. I forgot to mention in the other post that I hold the Sullivan rod with a pair of pliers so that it does not turn while you are trying to push the steel rod in. You might want to practice on a piece of scrap Sullivan before you actually to the bonding so you will see what I mean. The CA acts like a lubricant at first, but will set up very quickly due to heat created by friction.. but as long as you keep it moving and move fast, it won't set up immediately.. but if you stop...

CGr.