My take on this neat addition to whiz-wheels is:
You have 3 templates:
A (the big outer wheel) = True compass
B (middle wheel) = Submarine (all bearings relative)
C (inner wheel) = Target
Scope (transparency) = cursor
Here is a copy of my old orig SH1 whiz-wheel,
as you can see, (forgive the blurriness), I've set it to the params of the problem. You need to do the same with the new wheel.
Cheers,