Hi Wolfgang, >I think the corrections factor should be (I left my notes in the office) > > N_h BF_new > k = ---- * ---------------- > N_r BF_res+BF_nonres > > > after discussions with Ed/Daniele I had assumed this "magic factor" had to be set once for all for the default and that the reweighting file would have taken care of the variations of the exclusive BF automatically. So we did not recompute it for the systematic studies of the exclusive BF. Concezio.