FOr those unfamiliar with proper tools for refilling your wire loom.. see
this page..
It turns out that I pulled a spade off of one of the 4 way (always hot) wires.. then it contacted the chassis and released a bunch of smoke before I could get to it. Melted about 2cm of wire insulation before I contained the smoke. I tried to replace it with freshly smoked wire, but I'm not sure I will get proper flow through my cheap end connectors.
I've got some proper british wire loom connectors ordered.