Jeff
What would you like to know? I've been with Hock for over 10 years now, mostly dealing with his filipino and SDMS material.
For a brief description
Hock studied with both GMs Remy and Ernesto Presas and he combined their material into a system. Over time he also combined his material that he learned through his LEO and MIlitary training creating the SDMS material. In time he further refined and retuned his system making it easier to teach to where now it only vaugely resembles the Presas brother's material.
Hock's material follows the progression that he has laid out that is in his other course material the CQC, empty hands, knife training modules etc. etc. which is why I say it only vaugely resembles the original material, but it is easier to follow.
Hock has also through his travels and in meeting other FMA and martial arts/police/military personnel taken the tricks and concepts learned from them and added it to his stuff as well.
So his material is not what you might expect from a pure FMA system, and yet I believe it is a very good program. I'd say check it out.
Mark