Hi Folks. Got me a used NYC Sad Vintage 4 couple weeks ago and have had a couple problems. I sent it back to the NYC shop to get a few things done but one problem still exists. That being, a crackling noise when I run/play my hand up and down the neck or rub/touch the pickguard. After doing this, I touch the strings with my right hand and there is a small pop. The crackle loudness depends on how high the preamp is, especially the treble knob, and how fully engaged the VTC is. Meaning if I roll the VTC completely counter clockwise it disappears, at least I can't hear it, and the more treble/bass I add on the preamp the louder it gets. Same thing when passive is engaged. Now the VTC was just replaced at the shop because it was noisy when I first got it and NYC varified that so it's not the VTC. Strangely, NYC repair shop could not get my bass to make this crackling sound at all.... When I spoke with the shop yesterday it was suggested to go ahead and remove the bridge and check and see if the ground was connected. I did so and found the ground wire soldered to a strip of copper tape at the top of the hole under the bridge. Now I'm not sure if the wire and tape are actually supposed to be attached with solder to the bridge piece or if it just makes contact when screwed to the body... So I reinstalled the bridge and played at a jam session last night. The crackle remains as it was before and my friends noticed right away. It's not my amp or cord because none of my other instruments to this. And, it's not my receptecles in my house. It is definaltely the bass. I also noticed that when I roll completely to the Bridge Pickup the crackle again disappears or at least I can't hear it anymore. When I start to roll back to both pups it returns. I'm wondering if it's the NECK pickup or the wiring to it. Another phenomenon. While placing a whiping towel in my hand and rubbing the neck there is no crackle... very strange. Static electricity should continue to charge even with the material between my hand and the neck, I think. Anyone else have this problem? I'm going to report back to NYC on Monday as requested but want to brainstorm on the weekend while I have some spare time. Thanks if you can add and experience.