(20 May 2021, 10:03 am)6049 wrote They struggled on the X1 after they'd been tinkered with, but it was mainly the Washington Highway and Sheriff Hill they got a bashing on. The 27 is considerably flatter, so I'd bet most of the issues now occurring are down to age or potentially the fact that if a Crusader B9 is unavailable, then either ex-London deckers or OmniDekka's are allocated. I'd expect those to breakdown more regularly.

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I must admit that I was surprised to see the reported breakdowns on the 26/27.

You mention the hills and I totally agree that this was where they struggled with.
The slip-roads on to the Highway were painful.
Apart from that, I never saw any issues with reliability.