Much to my frustration I discovered yesterday that First Great Western charge massivley inconsistent amounts for season toickets between different stations. I travel every day from Bristol Temple Meads to Reading (via Bath Spa, chippenham, swindon and didcot parkway). My 12 month season ticket costs me £5984.00
I got some quotes yesterday from the seaso ticket hotline and they sell the following
Bristol TM - Chippenham : 12 Month Season Ticket = £1500.00
Chippenham - Didcot Parkway : 12 Month Season Ticket = £2348.00
Didcot Parkway - Reading : 12 Month Season Ticket = £1228.00
Which comes to £5076.00! That's £900 cheaper for exactly the same route. The only catch being that you can only use trains that phisically stop at the stations where the season tickets stop and start. I've checked the T&C's and it's all pucka.
FGW won't replace my ticket for this combination but I know what i'll do in 6 months when I renew!
Anyway, i hope this helps somebody