Nice to know the OBG is 'top of the line'.
I know you all think I'm a barbarian but the pickups which came in my OBG sounded pretty lifeless and the Thunderbucker was there, so there seemed little point in fannying about with things -- out they came. They are a very tall pickup, although possibly not as tall as the pups in an Epi IV Pro IIRC.
Just put the multimeter across them and they measure 7k89Ω and 7k96Ω.
Makes total sense you'd want the Thunderbucker in there.