I was wondering how you did that. I used to work in a shop that rebuilt starters and alternators for trucks and cars. I used a large soldering iron about 14"- 16" long to resolder armatures for the big truck starters. It took forever to do one of those. I was always pretty good at soldering with a smaller Weller soldering gun. But putting a torch in my hands around a shotgun is asking for trouble. I know better than to try that. That is really an art that you can do that. Good for you that you are that skilled. So, I was just wondering. Thanks.