Bob Adams wrote:

You appear to have overlooked the 313's, which are not exactly in their
first flush of youth.

Whilst they may be 30 years old, the refurb a few years back has made
the FCC 313s quite bearable.

Just a shame Silverlink haven't done the same with theirs, though that's
possibly related to the behaviour of a significant minority on the
"core" North London Line.

Cheers,

Barry