It's split, that's why I keep suspecting 169 (split) bendies are
all spare on weekends...
To be frank, many of the split shift buses are indeed SP on
weekends unless that particular service have TQ duties. Some buses
in CCK that I can think of that are SP on weekends are:
>>TIB546A, TIB740E, TIB886T, TIB1030P, TIB1050G, TIB1085G,
TIB968R (if this bus replace 433S slot)
>>TIB738M (SP on sundays as its on 307TQ01 on
saturdays)