The handful of Class 317s (from 1982) that remain are a
different matter, although the refurbishment exercise that has been
undertaken on them has improved the environment slightly.
Unfortunately the handful of trains are used mainly on the same services -
between Letchworth and Kings X - I never see a 365 on the Finsbury
Park/Potters Bar stopping pattern

Wish they'd share them out!
I don't think FCC are much different to WAGN. Twice on saturday lunchtimes
I've had to wait for following slow (317) services because the 4 car unit
was packed with Arsenal supporters (while the P'boro and Camb services whiz
through with 8 cars and half empty!). I know they put on extra afternoon
trains but the supporters travel early to beat the rush! Making the
saturday ones and off peaks 8 cars anyway should be the norm, it won't
encourage many occasional travellers out of their cars if they realise they
have to stand.
I guess though the weekend service is probably loss-making, they make the
money during the week and it's just an inconvenience to have to run stuff
weekends.
D