Nice looking guitar without the pickguard!
I like that pumpkin color.
Darwin, your post really confused me more
I had to go rethink my position.
We need to define what 60 cycle hum is. If you change the direction of the guitar angle to the lights, amp, power source, or anything that gives off 60 cycles, does the hum get quieter or louder? If it does, then it is 60 cycle hum.
The other kind of noise, RF ( high frequency ), which I call buzz will happen at any angle.
Shielding will only works for RF (higher than 120 hz) not for 60 cycle hum. For 60 cycle hum you need noiseless pups or dummy coil.
The shielding can not stop those low frequency hz.
If it is non of these, like myself, it is the amp or the signal chain to the amp. Ground loops and anything else.
I'm still learning on this. Hopefully we can have a good discussion about it and iron out all the details.