After conducting some experiments, I have come to the conclusion that these rail humbuckers are not separately wired.

I guess you have to pay a lot more to achieve that.
Makes having 2x3 way switches somewhat redundant.
Click image for larger version. 

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Meanwhile I'm up to 22 coats of Tru-Oil.
Bottle is fast running out so contemplating getting another one.

cheers, Mark.