I have a bi wire set of cables which now I have the quads could do with shotgunning but my iron is too weedy to do it as its pretty heavily stranded. Anyone nr W yorkshire with a powerful iron that can help?
You can get a Draper 100w soldering iron from car accessory or tool shops for £10, perfect for thicker cables.
I know you won't use it very often, but it's still worth having.