The unit 465912 had undergone body panel works at Doncaster and was returned to service around a month ago. Strangely, rheostatic braking has been enabled on this train, and it sounds great! As far as I know, there are a few other units at Doncaster which should be due to come back soon. Maybe those networkers have their braking sounds enabled too?

Enjoy the sounds :)

Filmed at:

Tonbridge
Orpington (inc. onboard)
Hildenborough (onboard)
Sevenoaks (onboard)
High Brooms