Thanks. It may look pro, but I'm a bona fide amateur; if I can do it, I'm sure you can, too. That CB would make a sweet ride!
The switch works mostly as it did in the 100 setup, except that the headlight remains off when the main (key) switch is on unless the bike is running, regardless of the lighting switch position. Initially, I wanted to make the headlight power come from the battery in this state, so the light could be on when the engine was off (just like the 100), but I'm not sure the extra complexity or risk of setting everything on fire trying to achieve it is worth it. Maybe one day when I have nothing better to do.