Well, with thanks to Lyle, I managed to get my Charvel re-wired tonight, and it even seems to work on the first shot. It is wired with two stacked concentric pots, each pot having a volume and tone control. There is one concentric pot for the neck pup, and one for the bridge, then an on/on toggle to switch between series and parallel. When in series, this gives me a single master volume and tone (the neck pickup controls), and when in parallel, I can control each pickup's volume and tone individually. That is a lot of options for two pots and a switch. If anyone wants, I can try to post a diagram.