I have put together a number of Warmoth six-string guitars, but I am working on a first bass - Warmoth neck, Ebay body. The body wood is decent enough, but I just realized there's no hole for an under-bridge ground wire to the control cavity. It's standard P-bass dimensions. As best I can see, Warmoth seems to drill a hole straight down from the bridge, then intersects it with another across from the control cavity? The bridge base plate is a full 2" from the corner of the cavity and 3.5" from the pickup hole, so it would take an even longer bit to get there in one shot. What's the customary plan for bridge grounding on a passive-wired bass?