Hello nile101,
The Mock Tests A-D are used nationally. Therefore, if you took a Mock Test B in Redbridge, it would be the same as a Mock Test B Trafford.
However, the exception to the above is the Chelmsford Test which has an additional creative writing 10 minute test with the usual 2 Papers.
It is advisable to plan to take different tests A-D rather than repeat any papers.
