No apologies needed sir!
What I meant by better performance was range capability with a "heavy" executive load. However, on reviewing my own input, I was referring to the BBJ's and 757's maximum range with a full payload. The C32's max range will be greater than a standard 757 because of the lighter payload. So, in the end range will be similar, but, as you said, payload is way in the C32's favor. I still think the weight issue of the communications equipment would be offset by using the airline grade interior. This stuff is much lighter than components that are custom made.
At any rate, you have answered my questions of why the BBJ's probably would not fit into the fleet. Thanks! One final question.. Do you think a BBJ would be considered as a replacement for the C-9 that transports the President to/from Camp David? Probably more airplane than they need, but it would be cool to see a BBJ in 89th colors.
I beleive the C-40 is a different bird than the BBJ. The Boeing official designation is the 737-700QC. It's an increased weight version of the 737-700 with a cargo door already built in.
I'm not a real aeronautical engineer, I just play one on Airliners.net.