I came across your post here recently. I can answer all of your questions you might have about Moo Lim Do and GM Lim. I trained under one of his instructors since the early '90's and I trained directly under him and his son Il Lim for several years while I was an instructor under him.
GM Lim trained in Tae Kwon Do in High School, Kuk Sul at some point and then HapKiDo under Grand Master Choi Young Sool. Him and his son are by far some of the most skilled martial artists I have every seen or know. Thier skill and technique is unbelievable! GM Lim came to the US with his wife and son back in the mid 1970's and stayed with a host family in Tremonton, UT. After a bit he started teaching in that area and also Weber State University. Later on he moved to Layton to the location he is at now.
He focuses training almost entirely on kicking techniques. He use to teach weapons, breaking and put more focus on the self defense teachniques of HapKiDo/Kuk Sul back in the early to mid 80's, but then started to not teach those aspects as much. He barely started teaching us instructors those types of things more over the last several years. Back in the early to mid 90's he probably had around 1500 students under him and his other instructors. All belt testing is done under him. He has never allowed his instructors to do belt testing for their students.
However... on the downside of things, all of his instructors have left and broken off from him except for 2. I broke off from him last year and teach under the name of Kuk Sul Kido in Clearfield and I help teach in Brigham City as well. I had been under GM Lim for some 21 years when I broke off. I can give you some of the reasons that most of us have broke off from him if you want to contact me privately. With what I teach I have gone back and started including things that GM Lim hasn't taught in a long time and other elements of Kuk Sul Hapkido. I also have made testing requirements harder and more worth it for students. Let me know if you have any questions!
- Dorian Kunzler
www.facebook.com/KukSulKido