This service has missed Earlswood and Salfords for the past two Mondays. It sails through on the fast track.
I have tweeted Southern several times about things like this and non running of Gatwick Express services to be told its engineering work.
Next Monday I shall check the exact departure information before I board.Track renewal the last two weeks, it's overrun both weeks too.
They don't want those Southern customers though: just listen to the on-train announcements.Gatwick Express hasn't been a separate TOC for awhile now. They've all part of Southern.