This is what you asked for:
I don't like it but it's your beer.
You will split the JB to the screw coil (the weakest).
With one pull/push, you can:
a) split the JB to the slug coil
b) additionally, you could also split the neck humbucker
c) It can happens in any 3-way position, not only when both are active.
With one more pull/push, you can:
a) split neck and bridge independently
b) or use a parallel/series switch to boost the guitar output
Notes:
white conductors are shown as light-blue in the diagram
bare wires are shown as light-grey in the diagram