Hmm, took 794A today on service 173, doubled up with 627A (KJ 77) which I didn't take while at CLE Interchange, 794A was three minutes behind schedule while 627A much later, and the BC was mumbling to himself about 627A being slow and he had to catch up whatsoever (heard only, never talked to BC), and when 794A overtook 627A at Toh Tuck Rd, the 627A BC gave

face and 794A BC scolded loudly over the door (cannot even hear), and later 627A passed at high speed at Hillview Ave towards BB, and was about to depart when 794A pulled into the station at 1940, one minute ahead of schedule.
Timesheet where times were taken (shift number confidential) were like 'giam chai' never see any amendments except for 'Diversion to Hume Ave', the last update.