You reported (Middy 28.05.15) the improvements Southern say they made to the morning peak timetable and I thought I would summarise for your readers what has improved at Haywards Heath.
Old timetable: About once a fortnight the 07.20 to London Victoria would be randomly cancelled and passengers would cram onto the other existing standing room only services.
New timetable: The 07.20 is definitely cancelled and passengers cram onto the other existing standing room only services.
Improvements: More predictability for commuters, improved published punctuality figures for Southern.
Lucastes Lane, Haywards Heath