Forgive my ignorance, but I soldered pickups to a jazz harness in the past. I like to make a new harness (2 Vol. 1 Tone). My question is: What kind of cable is connecting the outer lugs? Say if I'm going to an electronics store, what kind of cable should I buy? What's the best gauge? Also, what's better? Bending the lug to solder it to the pot to ground it? I had one harness that looks like copper wire is connecting the ground lugs. I've tried to look this up to no avail. Thanks.