(01 Jun 2017, 5:37 pm)peter wrote Do the 27/27a still interwork with the 9? If so, then I assume they won't when the service goes Frequenta if 9 buses are being done for a PVR of 9?

The 27/27a ceased interworking with the 9 in February. Since then it has reverted to the old way of the 9 being standalone with 4 buses and the 27/27a interworking with 9. Of course, 9 branded for the route would reduce the increased amount of spares on a Saturday given the 27/27a has a PVR of 6 on Saturdays.