Fabio's presentation: 1. General comment: given the preselection issue, are we still sure that we can use multijet triggers for 1tau3L and 2tau2L categories? Study 1tau3L and 2tau2L "gen categories" and see how many of those events pass the signal trigger. ZhangYu's presentation: 1. S4: Is this lumi recommendation the latest one? 2. S10: Are we using PileupID? 2.1: Related question: are we using CHS or PUPPI as PU mitigation strategy? It seems PileupID is needed for CHS only. 3. S11: The b-tagging SF strategy that we most likely need is BTagShapeCalibration: https://twiki.cern.ch/twiki/bin/view/CMS/BTagShapeCalibration 4. General comment: we are not using forward jets for now (our jets are in the range 0 < |eta| < 2.4 (2.5) ). What's the fraction of jets in the forward region wrt to the total, for example in signal?