[Arran]

This was why I started a campaign of collecting any high wattage soldering irons I could find at a reasonable price. For years I struggled with the same problem, how to undo things like grounding straps and ground leads of bypass caps, then after picking up the first 125 Watt iron I saw at a garage sale I had no more problem. So now I have a nice collection of "electric blowtorches" that will undo or redo just about any solder joint to a chassis, asbestos cords and all.
Regards
Arran