Yeah looks like you are on the right track.
White and Black may be reversed compared to the diagram by
@cags12. The PRS diagrams show white as hot for bridge, black as hot for neck. This was true for the 85/15 set in my Custom 22.
Here is an explanation of the PRS switch I worked out that may be helpful. It is a modified Super Switch setup. They removed a lug from each pole, and the two poles on each wafer are permanently connected to a single common lug. It limits the capabilities of the switch, but it's perfectly tailored for the PRS wiring scheme.