Hi all, unfortunately there was a bug in the macro to compute the systematics due to S/P fit. I found it and re run the computation for the cases: 1- linear fit starting from the 2" bin; 2- gaussian fit. In both cases there is a worsening wrt the previous estimate: 1: 35.7% (wrong old estimate: 22.5%) 2: 41.4%. (wrong old estimate: 22%). Plots of the PBrBr distribution are attached with this mail. Cheers, Antonio