Sorry this doesn't add much to the discussion, but:
Doncaster and Wigan (the towns) are smaller than York and Preston respectively, but are often quoted as having the populations of the metropolitan districts of the same name. (Ditto Wakefield, Rochdale, Bradford etc)
It would add more to the discussion if you could point to verifiable sources which support your assertion.
I'd like you to provide sources for your 'balanced information' then. So far, in all these threads, all I've seen are your opinions, usually contradictory, and a few 'quotes'.
If there are contradictions, why not name them?
Ive not seen anything to suggest HS2 services onto the WCML (Wigan, Preston, Scotland) would be anything but 260m and would be using the classic compatible stock that was initially used for Manchester before phase 2.
"HS2 Ltd has taken forward detailed work to assess the latest view on the likely cost of HS2 rolling stock. This has involved: reassessing the fleet requirement (including removing 260 metre units as a service offering)" (Source)
You appear to fundamentally not understand what trains running at a homogenous speed means for a start which causes me to doubt you understand the other matters you dismiss with no explanation.
Your chance to shine, then. What does trains running at a homogenous speed, 'mean for a start'?