Re: V2-S1-S1 Wiring Pots
500k audio taper pots. 24mm base and either 18mm or 15mm shaft. I'm pretty sure guitars with a pickguard like an RG550 would take the 15mm and rear routed would take the 18mm. You could buy the 18mm to be safe and you can always use a washer or something to shorten it if necessary. Some of the pots have a thicker shaft like Bournes and CTS...i usually try to avoid those because if you do have to use them on a guitar with a pickguard like a 550 they don't fit through the hole and don't like altering the pickguard to accommodate. In your case it might not be an issue.