From what you guys are saying, I am picking up at least two problems that I have been having. The first is the time out of forge. I was taking too long to hit it. Like you said if there if just a little bit of time to hit it then I was blowing it. I was told my someone to twist it first. So, I would throw it into the vice and twist it, then take it to the anvil and hammer a little. I bet it was probably sticking at the anvil and then I was knocking it apart at the anvil. The other thing is heat. I may no be getting it hot enough. I put the borax on and it bubbles up and looks like a sugary crust, then when I stick it into the forge, the borax just melts and runs down into the cable. It is not "dancing around" as you say. It just melts and runs into the cable like a normal solder would run into a wire. I think I may have gotten it once or twice by twisting it in the vise, cause it seemed to stick. But then went over the the anvil and hammered it loose again. I'll try again today and reply to this thread and let ya know how it went. The last pic I tried to take with the forge running ..... all you could see was an orange ball. It was too bright to take a pic of. As far as wool and brick. I have the inside of the pipe wrapped with two inches of wool and then I have bricks laying in the bottom (on top of the wool) I wanted the bricks as sacrificial so I wouldn't burn out my wool with flux. Here is a pic.
Cold Forge
Hot Forge
Hope the pictures help a little bit. I will try soaking the cable a little longer. Maybe what I thought was hot enough just wasn't. I was afraid of burning out the cable. But apparently, I wasn't even close. I will also try the stick test. I have a couple pieces of 1/2 inch square stock that will work nicely for that. And, lastly, I think I didn't have the metal hot enough. The metal was only bright orange. Cant really say I've seen the color yellow (on the metal) I have seen yellow flare off the metal, but I think that's just the flame reacting with the flux. Thanks for all the input. Like everything else ..... there is a learning curve.
Mutt