Read on...
Condition of Carriage number 16 allows you to start, end or break your journey on any intermediate stations on trains on which your ticket is valid. (provided specific exceptions aren't written on your ticket - why they are not)
Therefore passengers travelling between 2 zone 1 stations can travel through sydenham freely by using the "Crystal Palace Loop" - i.e. London Bridge - London Victoria.
Therefore if you hold a season ticket from London Bridge - London Victoria you may alight, and board, on any intermediate station. Including sydenham.
Arguably you could jump on and off any train along this route - but I wouldn't hold much stock to that as there are no interchanges &c. along the route. I believe this would be somewhat spurious however, and would advise only travelling on the "loop" lines. These lines do operate at rush hour, they run at these times:
Morning peak:
Sydenham-LB (from Victoria)
Departing
0819
0851
Evenging Peak:
LB - Sydenham (to victoria)
Departing
1655
1745
1818
They shaft us with higher fares and insult us with the barriers...the least we can do is get the best value tickets! If these times suit you in your commute then have a nice cheaper journey
