Court Reporting at Home (CRAH) -- Which Theory is CRAH?

The CRAH Website make no mention of which theory is taught.  In fact, it sounds like CRAH is unique stenograph theory.  The website states:

"This [CRAH] theory was developed so it could be SIMPLIFIED for home study students, containing only 20 theory lessons, while still meeting the NCRA requirements for NCRA-approved theories"

The CRAH material I bought (used) came with a two Sten Ed books.  Looking through these books and comparing them to the CRAH program, it appears that the CRAH theory is a modified Sten Ed.  Meaning that the alphabet, basic word prefixes and suffixes, etc. have a Sten Ed look and feel.  Or if you have to pick a theory (Sten Ed, Phoenix, Stenomaster, etc.) that is the closest to CRAH, it probably would be Sten Ed.    CRAH, however, has added it's briefs, prefixes, suffixes, etc.