early, what do you mean by this?
The only grounding connections I would approve are the neutral or ground bus, the supplemental grounding bus kit (installed in the pre-formed holes, using the included self-tapping screws) or a grounding bushing.
You do not get to pick and choose the method of bonding connection, as long as it is not a sheet metal screw it is acceptable to the NEC.
[This message has been edited by iwire (edited 11-19-2005).]
