(07 Sep 2013, 6:16 pm)Daniel wrote Have to agree with Tom on the above... The only "Northern" workings I'd consider 'rare' is if the service was meant to be allocated a Northern single decker, but a double decker appeared - and vice versa. Loans too, otherwise they're not rare at all...
Minus the 1, 2A/C, 60/61 - I'd say that the SPD workings you've given happen pretty much daily, if not every other day.
With Merits consumed on "Great Park" service X40 a lot recently due to 4950/1/2 being VOR a lot, it has been quite common for other Northerns to be used instead of the more common B10BLE, for example.
I agree with that Daniel, even the 38 instead of a Cadet had an SPD on a few days ago, I have even seen the odd Vyking on also in past few weeks, which I would determine as odd. Whereas say an SPD on the 20 for example I know happens on a Daily Basis due to current problem with the Prince Bishops Buses, they were just used so I had something in for that particular Fleet Number, so they can be ignored I suppose.
But there is other examples out there i.e. SLF Dart 8289 on the 50 or an SPD on the WSS which I would also say is odd. Whereas Tom thinks because it is Northern Branded Spare that it doesn't count as an odd working which I fully understand, and he probably isn't the only person to think that.