Searle
Established Member
I know FCC (TL) often issue 'Not to Stop' orders when services get severely disrupted on the Brighton Mainline. The next service is generally only a few minutes behind and it helps get the return back on track and reduces the risk of delays having knock on effects through the day. There are generally not many minutes between turn around on these sorts of services, as A-driver has already mentioned.
I've heard lots of complaints about Leagrave and Flitwich constantly having services not stopping there in delays