Winfield reports, based on Admiralty records, that although all twelve were ordered as cutters, all were completed as (or converted to) schooners.

An article in the Bermuda Historical Quarterly reports that eight were built as cutters (Alban, Bacchus, Barbara, Casandra, Claudia, Laura, Olympia, and Sylvia), and three as schooners (Adonis, Alphea, and Vesta).

[2] The discrepancy lies in the poor communications between the Navy Board in Britain and the builders in Bermuda, as well as in deficiencies of record-keeping.

Goodrich & Co acted as the main contractor to the Navy Board, and contracted out the actual building to different builders in different yards.

It was also highly resistant to rot and marine borers, giving Bermudian vessels a potential lifespan of twenty years and more, even in the worm-infested waters of the Chesapeake and the Caribbean.