Remember quality is not always in the size of the student database or the size of the location. In this case, the training and clientele speak for themselves.
For example, look at the expression on this student training. Isn't that what you would want from all students in the martial arts? 100% effort and in this case 100% fun.
This image would attract others to do the same type of training.
The intensity comes later.
It's gotta be fun first.