As far as "everybody goes through training and we don't let outsiders become instructors". Well, then things have changed in the last 7 years.
In 1994, the unaffiliated Kenpo school I trained at in Mt. View closed. Later that year, one of our newest Brown Belts joined a USSD school, attended the instructor's training camp, and a few weeks later was running the Mt. View USSD school as a Black Belt. He quit that school after a couple of years because he disagreed with the USSD's business ethics. He took several years off and started up at a local EPAK school where he now wears either an Orange or Purple belt (I think).
In 1996, I had a job where I traveled about 50% of the time, often overseas and often for 2 or 3 weeks straight. I was looking for a place to workout near my house in Sunnyvale. There was a USSD school. I made a deal with the instructor so I could workout. Went to a couple of group classes. Went on the road for a month. Came back. The instructor was gone and a new guy was running the school. He was a pretty nice guy, knew what he was doing--but had no Kempo training other than the USSD instructor camp. He didn't even bother to teach Kempo (since he didn't really know any). He taught Tae Kwon Do basics and some Hosinsul. I was traveling a lot and only working out a few times a month. I went on another long trip, came back, and another guy was running the school. I went to a couple of classes. He clearly didn't know what he was doing and the school closed a short time later.
Over the years, and as recently as 2002 and 2003, I visited a few more USSD schools in my area in Palo Alto, Mt. View, Los Gatos/San Jose, and Menlo Park on behalf of friends and relatives looking for a school and for myself. I have also visted several other schools, Kenpo, Kajukenbo, TKD, Ju Jitsu, Jiu Jitsu, Aikido, Karate, Muay Thai, San Shou, etc. I know what I've seen and I know how the USSD schools compare locally. And, the USSD schools up here do NOT compare favorably.
As for the accreditation from the "Head Abbot" of the Shaolin monastery...just what exactly did he give your leaders accreditation for?
Look, you may be at a very fine USSD school. You may be very skilled. You probably worked very hard for your rank. All of my comments are based on real experiences at local USSD schools.