FWIW, got the new bbs's. I ordered them from Bobs microfiche for a R1100RT. When I received them, they were too small. I researched the microfiche and found that the R1100RT uses a 7 mm BBS while the R1100GS uses a 9 mm BBS. Well, mine's an RT and it has the 9 mm in it. I have no reason to believe that the throttle bodies were ever changed. All the maintenance records go back to new, and it doesn't call it out anywhere.
Anyway, point being, if you are ordering BBS's for an R1100RT, be sure to measure the size before ordering. The part number is one number off (last four being 2073 for the 7mm, and 2074 for the 9mm).
This did give me the opportunity to go to Bobs though and check out some new toys. I'm really digging the new Sertao (old Dakar, I know). I think a newer 650 might be in the stable before too long. And if your around there, I picked some Olympia Air Recon3 pants for $159. %179 on their website, and also $179 at motorcycle-superstore.