Original set of slides had two issues now understood, updated in the fixed set of slides:

• background shape difference before preselection between CLIC setup and FCC setup. Tracked down to be due to a too high pT cut (15 GeV) on leptons for the distributions shown before preselection, that was changed to an E cut at 5 GeV.
• BDT variable for Z recoil was always set to 240 GeV for the ee channel, now fixed everywhere in the BDT results.