Hoi, in http://www.slac.stanford.edu/~ursl/talks/011603/ you'll observe that the mm2 scan is not quite the same as in July even for the old track/photon selection. Trk3Gam0 screws the B+ in the mm2 scan badly, while the B0 are decent (better than the current B+). This was different in July, where the B+ scans both in mx and mm2 were stable. I would not say that this increases my confidence in any physics- inspired explanation. Cheers, --U.