Hoi, in ~ursl/root/anaQA-o00/. you can find the usual set of merged rootfiles containing the "wKK" member in the "events" tree. Feel free to start implementing something in the fit to reweight events with ssbar in the Xu system (events with KKbar in the Xu have wKK ==1, those without have wKK == 0). The default fit on these files gives BRBR = 0.0202685, which is 2.5% above the iteration with n00. Offhand, I don't know why it's not identical. I will be running another identical batch after the KL systematics batch is done. Cheers, --U.