Thanks McCreed - Looking again (on a better monitor) I can see that the wiring of the jack is OK.
While the PBG videos are OKish, but don't make some things as clear as either PBG wiring diagrams or those supplied by the pickup manufacturers - it's so much easier to print out the diagram and tick-off each wire and connection as you go along than it is to keep track of things in a video.

(It's a shame that SD & D use different colour codes on their pickups, indeed even within one manufacturer there have been variations)