Here’s one possible career path to consider: Start by pursuing CDT and CCS certification as soon as possible, if you aren’t already; continue full-time in specifications until you have the requisite experience necessary to qualify to take the CCS test (I haven’t checked the current experience requirements).
At the same time, pursue architectural registration (without a B. Arch, you may now have to explore alternative paths, if any remain). Develop your expertise in AutoCAD and Revit (through good courses, if not already competent) to the extent that you can find a job working in an architectural firm doing construction drawings.
Seek experience in as many aspects of architecture as possible, including construction administration; your spec experience and certification should be a bonus to a prospective employer. Then, with CA experience, pursue CCCA certification to double up on your credentials.
Finally, with a well-rounded architectural background, especially experience in “how to put a building together” (detailing, etc.) and CA, you will have the experience it takes to succeed as a full-time in-house specifier (your versatility, including Revit and CA competence, should be the bonuses at that point).
If you like security, seek a full-time specifier opening with a stable, major firm. If none is available, consider becoming an independent specifications consultant (see www.scip.com).
The good news is, since so few architects like to do specifications, they avoid learning anything about specifying, for fear that they will sometime be tasked with doing that. So they need help from those who have that ability. Same applies to CA (especially submittal review).
Since most architects hate to do that, those who can do (and can tolerate) that kind of work have an advantage; experience and credentials in those specialties may help you to get (or keep) a job in those recurring times when jobs are few…or, if there aren’t any jobs, to become a consultant with your own one-person firm, without having to develop a general architectural practice when there’s little work out there.
Instead of taking your chances with what few naive owners there may be who need architectural services and are willing to risk using a new firm without a track record, you’ll get to deal with architects as clients, who know they need your help.
(In many ways, the above reflects the path I have taken.)