(04 Oct 2021, 9:53 am)JP6004 wrote I thought the B5H would of been a good choice for cascade, still not as large as the standard B9, but provides extra capacity
They can't put buses which aren't Euro 6 on the 50 because of the emission mods by South Tyneside Council. So they wouldn't be allowed and if you upgrade them to Euro 6, you might aswell keep them on a Newcastle route.
Also to whoever mentioned deckers, there's not enough Euro 6 deckers as it is to be wasting them on there.