I have been watching some tutorials of people wiring their pickups, and when it is time to ground them together, they solder the same length of braided wire to the back of all four pots. My issue is that I only have cloth wire. Would I be able to do the same and just solder the cloth to the pots with one piece like braided wire, or will I have to use 3 individual pieces to ground each pot?
You certainly can’t solder the cloth itself, if’s that’s what you mean. You can solder individual ground wires between the pots. If I’m not using braided wire (and sometimes running the braid around as the ground isn’t very ergonomic, I just use a piece of solid wire between them, vintage-Gibson style. If there’s a risk of any signal grounding on the ground wire, then I slip heatshrink over it. I use solid tinned wire of around 16 or 18 AWG for this.