Noiseless Pickups not so Noiseless

[fatboy01]

I'm rewiring a strat with 3 Bill Laurence wireless pickups, and I have a noticeably loud hiss/hum. It gets dead silent when you touch the strings/tremolo/ any metal on the guitar. All my strats pop slightly when you touch metal, but this one is really loud. So I figure one of my grounds is messed up, but how do I tell which one? I've re soldered the entire thing and no luck. I'm also using a blender pot and a push-pull midrage pot for my 2 tone controls.