I asked this question in N Gauge but no one has responded yet so I thought I would try here. I have seen a "cold solder" tool advertised on TV. It sells for $19.95. It is battery operated but shows that it only gets hot when actually soldering. When you are finished with the solder job, you can touch the end of the tool and it is cool. I was wondering if anyone has tried this tool when soldering track together. If it works, it would seem to make it a lot easier and possibly not have to worry about getting the track too hot and melting plastic ties etc. I just wanted to know if this was a viable tool?......or just another TV infomercial come on.