The LH MUC Sat nightstopper hasn't operated for a long time so not sure how
it can be reduced ?????
Seems you are right.
Looks like there is a 'ghost' in the system as my screen shows LH2505 arrives at 22:20 Saturdays and then departs at 06:55 Sundays.
Oh well, small ray of hope in amongst the bleak German picture then.