Thanks I appreciate can get tickets the day before but that would still mean the 0929 from FH to WC is a no go area , whereas when it arrives in Sydenham as thw 0931 it is OK.
I believe most people who used this train from FH were on discount tickets , freedom passes etc.
The rules are quite simple. Cheap day returns and Freedom Passes are valid from 9.30. Using them on the 9.29 is fare dodging. The barriers will stop this.
Perhaps this is why they've been installed?