Okay, I'm swapping all the EMG electronics in my quantum for a NTMB Bartolini pre amp and MC45 pickups. I got all the parts, and a lot of advice, from Jack Read (what a nice fellow). He says that 99% of basses have a bridge ground. I had never even heard of one before, and I've been doing a fair amount of reading up on it. He said I can try it with out, and see if it hums, or run a thin copper wire outside the body so I don't have to drill, which I think is silly. If I decide I need a ground wire I'll drill a hole for it. So do you know if a bridge ground is really necessary? Should I bother trying it without one, or just bite the bullet and drill for it.