In an attempt to resolve some major hum problems with my son's archtop with a floating pickup, I'm about to start my 2nd rewiring attempt. This time I'm going to be using 18 gauge, stranded, shielded wire. I've seen a lot of recommendations of 22 gauge but 18 seems like a better size for the various holes and plugs. The wire has a red and black and then a wrapping foil with a single shield wire that can be used to wire the shield into the circuits.
Is my choice of wire ok? Should I use 22 gauge instead? Why?
How do I incorporate the shielding into the guitar wiring? Do I tie the negative and shield together at each side of the connection? For example on the pickup, there is a positive and negative lug. What do I do with the ground?
On the volume knob, I've seen 2 different recommendations on the intertubes. One is to have the pot adjust the positive from the pickup to the output and to wire the negative to the back of the pot. Others have the wire from the back of the pot also connect to the other poll of the pot. Any recommendations? And what do I do with the shield wire -- join the negative and shield wire at the back of the pot?
How about at the jack? I assume that I tie the negative and ground here at least.
Thanks for any feedback.