Hi
As an answer, you might check the questions section of the bestofbvi page on ferries. They list the time from VG to STT via Road Town as being 1 hour and 40 minutes, which is just about what we experienced with the 6:30 AM Speedy ferry from Spanish Town last year.
Peace
Dugg & Chris
Our VI pics are at
http://picasaweb.google.com/papadugg/ - haven’t started on our ‘14 pics for Picasa. Having trouble getting ‘13 on the site.