Ah, but soldering to the back of the pot was what I was referring to. I HATE doing this, they are usually made of aluminum, which is incredibly difficult due to the oxide layer on the surface doesn't allow solder to wet it, or some alloy of steel. Copper, on the other hand, is WAY easier to get solder to wet. I'm still debating whether to bother with these saddles now, I may just get a set of mustang saddles instead, they are cheaper and I don't have to bother with drilling. I haven't decided.
To save face for myself a bit, I should explain that I originally believed the GraphTech ones were in fact made of graphite, which IS conductive. I had to dig in the FAQ to find out what the exact material was, then a trip to wikipedia confirmed that boron is not conductive, despite the fact that it is used as a doping agent for p-type semiconductor junctions. Sometimes I wish I had studied materials science.