Although the basis for classifying forms varies widely between different schools and styles, the following 22 forms would be considered advanced by almost any standard of measure.  They are complex in their construction, are difficult to perform correctly at high speed, and require intensive practice to execute smoothly especially when combining power with finesse in the classical Chinese manner.  They will prove to be highly productive to any dedicated Kung-Fu student regardless of previous experience.  Most are ideal for tournament performance or public demonstration (except the Tom Toi), have unusual characteristics or background, most are either "Master", "Third Level" or "Closed Door" forms, and, as far as we can determine are known only to the Green Dragon program!!  Hence, we have priced these slightly higher.