I copper taped only the control cavity on this one. The pickups are single coils but with three leads, one is a ground connected to the covers so I figured the pickup cavities didn't need shielding. When I sent the order I added a note about grounding the bridge and Warmoth drilled a hole for this at an angle from near the bridge screw mounting holes to the control cavity. So everything should be properly grounded when it's all hooked up. Btw, I don't know if my note was necessary, perhaps they would have drilled the hole anyway. I just threw it in there to make sure.