Re: H-S-H with Pan Pot
i had a similar setup in a project RG/JEM that i added a 3rd humbucker to. I wired a mini-toggle in so i could add the bridge to whatever position i was on. I had the 5 way wired up strat style just with humbuckers so there was wasn't an option to do neck and bridge. was an easy mod to do. You could do the same with an extra 1 meg or no load volume.
the easiest way to do it is to find the hot out from your switch and then just run a jumper from the bridge pick terminal of the switch. So on a spdt mini toggle one of the outside terminals will be your bridge pickup hot, the center will will have a jumper between the other outside terminal. This will be for both your hot switch output and your tone control output. This means you are always on and just adding the bridge when you want to. The configuration would be similar for the added volume pot. Unlike the master volume you wouldn't ground out one of the outside terminals.