On the "my data" link where you can export your raw data, you are able to export specimen data and identifiers separately, but unless I am missing it, it would be nice to have all the identifiers (including the new NCSU barcodes!) as a column included in the specimen raw data.
The my_data tables are verbatim replicates of the tables in mx. Since identifiers are stored in a separate table you have to download them both. There has been some call for custom combinations, so I'm reformulating this to be a request for one of those.