Hello, I've just boarded the 19.31 to Ipswich, and a few minutes ago, a pair of 315's on a stopping service unusually crossed over to terminate in Platform 2, and then pulled out in the London direction as my train was pulling out towards Ipswich. Does anybody know why it terminated in this platform rather than 5? Platform 4 was already playing host to a pair of 315's, and the preceding Southend train used Platform 3, so there wasn't any reason for it to not use Platform 5. For those of you that don't know, Platform 2 is the Up Fast, and if it helps, one of the 315's concerned is 315828. Thanks. 