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Hi all, I produced the comparison plots for the new track selection you find the results in the page: http://www.slac.stanford.edu/~daniele/vub/GTVL_AS.html and you can compare with the table in the page http://www.slac.stanford.edu/~daniele/vub/disagree.html for the old selection (sometimes the chisquare could be screwed up because of bad mes fit with low stat) My comments are: - improvement in N charged and Qtot - small improvement in mm2 - nneu same level of disagreement (expected) - improvement in mxhad - mxhadfit: same level of comparison my final comment is that selection seems to be fine and actually can improve the result. I am not sure that we are using the right tables for the kinematic fit now. If not, results will be better in the future once we will plug in the right tables. I have another comment: actually in the generic MC we don't have the same ratio Bch/B0 (2 for generic MC and 1.7 for data). This for sure affects the Ncharged, qtot and Mx distributions. I will redo the comparison with the right balance. Daniele