MAD-X
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Tapering introduces optics beating
Using MAD-X 5.08 and tapering for the FCC-ttbar lattice introduces some optics-beating. It increases if the number of RF-sections decreases (while keeping the total voltage constant). This is not the case if version 5.07 is used with tapering. The resulting "pt" is the same for both MAD-X versions.
An example with the FCC-ttbar lattice is given here: /afs/cern.ch/work/j/jkeintz1/public/FCC_tuning_studies/tapering_testing/match.madx