"Paul Scott" wrote

I agree with the idea of moving the buffer stops to give a larger
circulation area though - but as you say this would be highly dependent on
the max train lengths used in P12.

Platform 12 is only 171 metres, and if trains are to get in and out of 12,
only 165 metres of 11 can be used (length to mid-platform signal), so you
couldn't chop much off them without making them unusable.

Peter