In message , at 08:01:47 on Sat, 14 Dec
2013, Roland Perry remarked:

They were using 3-car on the Peterborough-Ipswich too (quite a step up
from when the service was run with a dogbox). Today I'll try to look
out for specific trains.

All three (CambridgeNorwich and PeterboroughIpswich) just now were
3-car. So the 2-car I've been seeing all week do seem to be the odd ones
out, if this keeps up all day.
--
Roland Perry