001A or 001B?

Use 001B, always.
Because we need to get the date of birth - if this can be supported by documents, of course.

Photographs will be accepted and photo will be taken for new electors, non-image electors and electors with mismatched or unrecognisable images on the rolls. In all cases, one may use Form 001B together with Form 6, Form 8 or Form 8A wherever applicable.
However, 001B will have to be MODIFIED suitably to apply for SRER2008: there will be NO pre-printed names, for example.