Let's also take into account that the 7 car sets have too much 1st class provisioning to relieve the overcrowding that often happened on a 5 car set, some of the seats are starting to fall apart, the fold down tables can be a bit grotty sometimes, some of the windows are blown (as in there's condensation between the panes of glass), there's no USB plug sockets (and only 1 standard plug socket per pair of seats), the lights can be a whole mismatch of color temperatures (and need upgrading to LED) and the worst part: you can't pick up FM/DAB/3G/4G/5G/GPS through the metallized carriage windows very well, if at all, which results in the on board Wi-Fi getting extremely overloaded extremely quickly (as in, it barely loads any webpages at all, and cannot load Discord/WhatsApp).
IMO, the entire 22x fleet is long overdue a one way ticket to Newport Sims Metals. Calling at Newport Sims Metals only.