(25 Nov 2014, 8:39 pm)RobinHood wrote Lets not talk about the TTX B9's that are regularly deputised with TEN branded examples, Pulsars and even B10's!

It's not all pain sailing with a bigger engined bus!

Not all of the non TTX allocations are a result of VOR many of them are due to delays on the A19 resulting in a Solar, B10 or other being used to keep the service running to timetable.
The B9's will have planned work programmed work at times requiring a replacement vehicle such as a Ten branded B9. I would therfore not assume that non TTX buses indicates problems with the TTX B9's.