With time loss cumulating through the day, the two aircraft with no recovery opportunity in their schedules ended up running 1.5 - 2 hours late by evening
I was following this, and indeed the aircraft that ended the day at LBA and BHX were very late getting there (the one that finished in BHD was only about 30 mins down). 8 sector days, so little room for recovery, as said.
Lets hope that some of this was down to "first day publicity" (various coverage of this on social) delaying turnarounds etc and that things get better quickly.
Update: this mornings 2 arrivals into LHR (from LBA and BHD) appear to be on schedule, but the first BHX-BHD sector is showing a 1hr 30min departure delay