(18 Sep 2016, 5:42 pm)mb134 wrote Can't tell whether or not this is sarcastic. If not, 6 or 7 for Ashington doesn't make an awful lot of sense to me, 8 or 9 meanwhile would surely mean the end of 7501-9 on the X21/22.
I guess 6 or 7 for Ashington could replace the 4 used on the X15, and the other 3 could be new for the 35 to accompany Streetlites.
What about the X20?
I'd say the B7TLs are more urgent to replace than 7501-09.
The B7TLs can then be cascaded to other routes or become spares.
The PVR is also a similar number too...