Back when dinosaurs roamed the earth, I did wire wrapping for about 6 years. We had special "guns" that you fed the wire into the tip, stuck it down over the pin, and it would cut, strip, and wrap the wire. They were very expensive, but you could turn out prototype work in a flash with them. I have never heard of the type of sytem you're talking about. it looks like as soon as you got the insulation burned off, the wire would have to be loose, unless it somehow displace the insulation on the corners of the pin. Wire wrap is a one time good deal, and if you have to unwrap the wire for a boo boo, then that wire is trash, and the other end has to come offf too, since it nicks into the pin corners.