Just thinking about this, wonder if this isn't all traffic related and is partially to do with the double decker issue with Arriva aswell.

If I'm right very quickly working it out there's now going to be boards which pretty much miss both peaks and the school runs so the 35 no longer needs the decker allocation it has now, releasing deckers to elsewhere.

Boards like this: https://bustimes.org/vehicles/anum-7575?date=2023-11-22

For example.