MIG wrote:
On 9 June, 18:32, wrote:

That's right. To go south to the Met from platform 2 would require
crossing both northbound tracks, so all crossing moves happen at
Harrow North Junction, where only the NB slow is crossed. On the
other hand, using platform 1 for NB Met fast services takes only
takes them across the SB Chiltern and gives extra platform capacity
in the evening peak.-

A bit late to go back to this one, but I got round to checking the
right Quails. The Southern (most up-to-date) edition corresponds
exactly to what you say, with the electrification not even extending
from platform 2 as far back as the diamond.

That is correct. There is no route SB from platform 2, other than up to
Marylebone. Electrification ends at the south end of the platform. In
practise, the only services that use P2 are terminating trains from the
north, that then run back to Rickmansworth to stable. AFAIR that only
actually consists of one evening service at around 20:15.