Well - had the assessments and passed them. The nice HR lady told us our results at the end of the day. I tried to ask her about how they shortlisted and how many applicants they had but unfortunately she was giving nothing away. There were 5 of us at the start with 2 dropping out during the day! I was expecting loads more candidates though!
If you do get selected, don't go in jeans and trainers and look smart. You might be seen by your future interviewer as these were being carried out there also.
For me, I found as others have said, there is only so much practising you can do. I think it is better to know what to do and expect in the tests because at the end of the day - you can either do them or not. The material they send you and the info on this site is all you need.
Now I am waiting for my interview dates.
They also send you a letter to use as a ticket to get to the offices in Southampton for the day. Only valid on SWR trains as I found out while sitting in a Cross Country train!! The ticket inspector was OK about that though - I sensed there is some camaraderie amongst rail workers which is one reason what attracts me to this job.
Good luck Johnny Depot..