Hummmmm

Having trouble sorting out a hum on a guitar I just built. It's wired unlike anything I've ever done, so maybe someone can help me sort it. It has a hum that goes away when I touch the pickups, or jack. It doesn't go away when when I touch the strings or tailpiece. The hum is really, really loud, but I can use the tone control on my amp to get rid of it (treble ALMOST off....it comes back if I dump the treble completely...and the same thing happens on 3 different amps). When I have 2 pickups on, it almost goes away, and is bearable. Its not directional, meaning, it doesn't change when I move around the room, nor does it vary when I get close to the amp or another power source. Its on a Bigsby inspired double neck. 6 string neck grounds go to that necks volume, as does the TP ground for that neck, and from volume to jack. 5 string neck pickup ground goes to that neck's volume, as does that neck's TP, and from volume to jack. I've redone all solder joints. Thoughts?

 

reading .7ohms.

 

Never mind. Got it. Cracked lug on the volume pot.