Perhaps this isn't the best place to make this suggestion, but here goes:
Would it be possible to make the full ACS geography files available in advance of the release?
I know there are some basic geo files in http://www2.census.gov/programs-surveys/acs/summary_file/2015/documentation/geography/5yr_year_geo/, but these files include only state abbreviation, logrecno, geoid, and name. I'm referring to the full geo files that include these fields: FILEID, STUSAB, SUMLEVEL, COMPONENT, LOGRECNO, US, REGION, DIVISION, STATECE, STATE, COUNTY, COUSUB, PLACE, TRACT, BLKGRP, CONCIT, AIANHH, AIANHHFP, AIHHTLI, AITSCE, AITS, ANRC, CBSA, CSA, METDIV, MACC, MEMI, NECTA, CNECTA, NECTADIV, UA, CDCURR, SLDU, SLDL, ZCTA5, SUBMCD, SDELM, SDSEC, SDUNI, UR, PCI, PUMA5, GEOID, NAME, BTTR, BTBG.
Normally these geo files arrive along with the summary file release on embargo day, but I can't think of any reason why the geos need to be embargoed. It would be really helpful to have this data ahead of time.