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Hi, The disagreement for intpur between the old and new production (shown in Hennings presentation) was due to the number of B0 and ChB decays not being properly normalised in the 2 samples. I have now made separate plots for B0 and ChB samples comparing intpur with the old and new production. The number of events for both samples have been scaled to the same number of generated events. http://www.slac.stanford.edu/~clareb/IntpurPlots/B0IntpurScaled.eps http://www.slac.stanford.edu/~clareb/IntpurPlots/ChBIntpurScaled.eps The agreement is now much better. The yield with the old production (after requiring EnergyGam>1.3) is: #B0 3538 #BChg 3935 and with the new production (scaled to the same number of generated events as the old) is: #B0 3147 #BChg 4042 i.e. we see a smaller overall yield in the new production. The situation is reversed in data but this can be explained by the larger yield for low purity modes, as seen from http://www.slac.stanford.edu/~clareb/IntpurPlots/DataUnscaledIntpur.es Thanks Clare