Going back to an earlier era is it correct that some Alton services and Guildford stoppers were formed 458 in the 1999-2004 period?
I visited Woking in 1999 after the timetable change (which brought in 4tph Portsmouth Direct services etc) and they were all VEPs with the odd CIG then; I have a CWN from 2004 and this also shows them as mostly CIG/VEP with the odd 450, which were just starting to come in, but no 458s - they were all on the Reading route.
I didn't go up that way much around 2000-2002 or so, so don't remember too much about services up that way at that point.