I don't know about off peak but at peaks the 60s are absolutely rammed so they should get a lot of priority especially now that the X10/X10A aren't First's.
what requires more drivers? The 61 at every 8-10 minutes or a 60(Clydebank to Easterhouse) at every 20 minutes?
The status-quo with the way the routes are in Glasgow isn’t working, simply being bemused by the idea that the 60 & 60A should not be broken up is bewildering.
The 60s end up being rammed because most likely other routes don’t turn up, particularly if it’s bound for Maryhill from the City Centre.
Previously when the 60 operated as route 40 it did not interfere with the 60A or equivalent route that went to Milngavie.
Quite frankly the 60A needs separated onto its own Milngavie to City Centre Route, particularly as the Citybus 15 is running hourly from Milngavie as well albeit via different areas.
The 64 is also an interesting one because it's very well used at times too. The only alternative would be incorporating a 61A into the current 61 and having that go to Carmyle with the 61 going to Sandyhills less frequently than it does now.
This should’ve been done eons ago, provided however that the reduction in frequency at Sandyhills was a reliable one, which of course it wouldn’t be, perhaps no more unreliable than it is now.
Routes like the 9 are the interesting ones to me because even though the trains exist and Mcgills overload the 38, the 9 is still busy in and out of Paisley enough of the time to warrant the current frequency.
If you go out and drive a 9 you will occasionally hear people say they will actively choose route 9 over the 38, many people don’t like McGills, it’s that simple.
Other factors revolve around the fact that the closer you get to Glasgow City Centre itself the more First Buses can be found this benefiting those who chose First Bus Day or Weekly tickets.